It got 5 stars from Benedict

From a column in the Catholic Herald, noting that in the long interview most noted for its condom comments, Pope Benedict also mentioned that he felt priests should live in communities.  The column then notes:

There is no need to cite the obvious dangers arising from isolation; this and its consequent loneliness are quite bad enough in themselves. Even Pope Benedict – who might be described as a kind of ‘prisoner in the Vatican’ – fondly describes his own little “community” within its walls: he, his two secretaries and the four nuns who look after them, share meals, watch DVDs together and join in the celebration of Mass and each other’s birthdays. I am sure this small community helps to make the burdens of his office more endurable and less lonely.

Funny, but I never imagined the Pope's domestic life as being a bit like a (celibate) university student share house. I hope they share a beer while watching the latest overnight hire DVD from Vaticanbuster.

Because it will annoy Philip Pullman

There's a so-so review of Voyage of the Dawn Treader that has this comparison between three current fantasy series, which amused me quite a bit:

To describe the overall series comparatively, Narnia is the dorky Bible-basher at the back of the class whilst Harry Potter is the popular, apolitical kid who gets all the attention. His Dark Materials is, of course, the atheist drop-out brooding over a gun collection.

More miscellany

Spies:    the US secret orbiting shuttle-lite returns to earth.   I expect a villain holding a cat was inside.

Fooling the Nazis:  the BBC has an article about that famous deception involving floating a dead tramp in Spanish waters with fake invasion plans.   I see he had been kept on ice for three months before embarking on his mission.

Holiday destination I could happily avoid:  Another BBC story on a salt lake in Djibouti, which has summer temperatures of 55 degrees (and 34 degrees in winter.)    Yet some people like it that way:

Like Ali, Mohamed says he is pinning his hopes for the future of Lake Assal, on tourists coming to look at it.

The first plush hotel has sprung up in Djibouti. It has two swimming pools and hot and cold running water.

But the water still smells of desalination chemicals and tastes of salt.

Its guests are mostly foreign military on rest and recuperation, visiting diplomats, and NGO staff.

I ask Ali why he and the other families do not leave and look for work in Djibouti town.

He says: "We were born here. We love Lake Assal. We like the heat, we just want more water."

Bacteria in the news

The Science Show has an good story on the strangeness of the arsenic utilising bacteria that NASA announced last week.  Interestingly, the woman who found them had predicted they should exist.  Very clever.  Physicist author Paul Davies was involved too.   He summarised the discovery as follows:

This is the first time that any living organism has been found that can operate outside of the six basic elements on which all hitherto known life depends, which is carbon, hydrogen, nitrogen, oxygen, sulphur and lastly phosphorus. It's replacing phosphorus with arsenic. And it's doing this not just in a casual way, not just by stripping the energy out. We have known organisms that will do this. The way I best describe it is that they smoke the arsenic without inhaling it. These are organisms that take the arsenic into their innards, into their vital biological machinery, incorporating it into their biomass. So what we're dealing with here is a radically new type of organism. It's not just an outlier on the known spectrum of life.

And in other new bug news, it turns out that it is bacteria that are eating away the poor old Titanic:

Microorganisms collected from a "rusticle" – a structure that looks like an icicle but consists of rust – are slowly destroying the iron hull of the liner on the seabed 3.8km (2.36 miles) below the Atlantic waves where it plummeted, killing 1,517 people, in April 1912.

The newly identified species, while potentially dangerous to vital underwater installations such as offshore oil and gas pipelines, could also offer a new way to recycle iron from old ships and marine structures, according to the researchers from Dalhousie University in Halifax, Canada, and Seville University in Spain. The discovery of the bacterium, now named Halomonas titanicae, will be reported in the International Journal of Systematic and Evolutionary Microbiologyon Wednesday. When the researchers tested its rusting ability in the lab, they found that it was able to adhere to steel surfaces, creating knob-like mounds of corrosion products.

I wonder if some new bug that would be helpful for terraforming Mars will be found soon. 

Catch up time

Three other things of interest to your humble blogger over the last week:

* Religion: Ross Douthat’s essay on contraception and the Catholic Church (inspired, of course, by a certain Papal comment on condoms) has been around a couple of weeks now, but it is the best commentary on it I have read. He is a very good writer, and I should remember to read him more regularly.

* Science: a too detailed by far article from arXiv on working out whether the entire universe, including space-time “is emergent from the quantum-information processing”. I see that Wikipedia has a fairly long article on the “ it from bit” idea, but I haven’t read it yet.

* Sex: Prostitution is, apparently, incredibly popular in Spain:

Prostitution is so popular (and socially accepted) in Spain that a United Nations study reports that 39 per cent of all Spanish men have used a prostitute's services at least once. A Spanish Health Ministry survey in 2009 put the percentage of one-time prostitute users at 32 per cent: lower than the UN figure, perhaps, but far higher than the 14 per cent in liberal-minded Holland, or in Britain, where the figure is reported to oscillate between 5 and 10 per cent. And that was just those men willing to admit it.

The article suggests that this has something to do with Franco, which I think is a bit of a stretch. Given its embrace of gay marriage, as well as commercial straight sex, I’m sure this country must be a big disappointment to the Pope.

Dawn Treader noted

The family had a pleasant day out seeing Voyage of the Dawn Treader yesterday.

To my surprise, my son said afterwards that it was the best of the trilogy, but he’s got a bit of a thing going about ships at the moment. I found it a very mixed bag. My main problem is that, whereas I felt the first two movies were very well directed by former animation director Adam Adamson, there is nothing noteworthy at all about the direction of Michael Apted in VDT. Maybe this should not have mattered, given that it is less of an action/battle story than the first two, but I think it does account for some of the attempts at humour really just falling flat with the audience, and the action scenes that are there are just not as well done as they have were in previous movies. (Honestly, the one-on-one, near climatic, fight between Peter and Miraz in Prince Caspian made a worthy comparison with anything Ridley Scott has done.)

My other major concern for the film is that, based on some internet comments, I saw it in 2D, as the 3D version was only decided to be made in the post production conversion process that many critics claimed was unbearable in Clash of the Titans. To do 3D well, you have to plan for it from the start, and be sure that scenes are not over-edited so as to allow time for the brain to “see” the 3D clearly.

Even though I was watching it in 2D, I felt sure I could see where the problems of the 3 D version would exist, and I think many more critics (once reviews from North America start appearing) are going to be dissing the 3D version. I would not be surprised if that hurts its box office.

On the good side: although it’s been decades since I read the book and I recall little about it, the changes made to the story appeared reasonable to me, and as with the previous movies, are within the spirit of the source material. It was always going to be a challenge to make an episodic storyline into a smooth flowing movie, but they succeeded in that pretty well. The movie does not drag at all. That’s not to say the script is perfect; I’m sure I would have suggested some changes if I were in charge.

And still, I remain a sucker for the emotional power of Aslan whenever he makes and appearance in the films. It’s not that the books were important to me as a child; I only read them as a young adult after I read most of Lewis’ serious books. But the realisation of Aslan in the films, being as it is entirely consistent with the robust view of Christianity that Lewis held, is their best achievement.

Interestingly, at the end of the film yesterday, the audience was surprised when, just as the credits started, an earnest young man down the front stood up and announced loudly that he was there to tell us all that “Aslan is Christ, and He wants each of you to know him…” etc. The volume of the title song then tended to drown him out, but it was the first piece of cinema preaching I had ever encountered. I would have preferred a more subtle form of evangelising (perhaps quietly hand out invitations to church), but I couldn’t condemn his effort anyway.

Drinking ages considered

Oh.  I had missed the fact that:

A wave of respected medical opinion has signalled its support for raising the legal drinking age since the proposal [to raise drinking age to 21] was brought up in the NSW Parliament more than a week ago.

The article notes the effect of raising the age in the States:

Professor Swartzwelder cites a decade's worth of research from the Harvard School of Public Health College Alcohol Study, which followed the drinking patterns of 18- to 20-year-old students. The research found that the raised legal age of 21 had created extremes in behaviour.

The law not only increased the proportion of students abstaining from alcohol but also the proportion of students engaging in illegal and dangerous binge-drinking episodes.

I find that a little odd:  why drink quicker and heavier just because you shouldn't be drinking?

Anyhow, it’s an interesting question, the effectiveness of drinking age prohibition in different cultures.  I’ve mentioned before how Japan enthusiastically runs on alcohol, to the extent that advertisements for imitation beer for the kiddies can  appear on television.  While it has a drinking age of 20,  it still seems to be the case that, even though underage drinking has been increasing in the last decade or so, it is still not in the same league of problem that it is in the US.  Certainly, it is not such a significant problem that beer can’t (famously) still be found in vending machines on the street.  (The number of machines has been wound back, though.)   

I wonder if part of this might be because they do make more of a fuss of "coming of age" generally.  It's a holiday every January:

Coming of age ceremonies (成人式, Seijin-shiki) are generally held in the morning at local city offices. All young adults who turned or will turn 20 between April 1 of the previous year and March 31 of the current one and who maintain residency in the area are invited to attend. Government officials give speeches, and small presents are handed out to the newly-recognized adults.

I guess it's hard to import one cultural celebration into another (although it works if it's something like Halloween,) but this sort of public endorsement of the importance of the transition to adulthood is something pretty much lost in the West  (if it ever really was there, I suppose.  I don’t think celebrating 21st birthdays was ever really as significant as the Japanese system.)  

I’ll mark this down as something to institute upon my much anticipated ascendancy to benevolent dictator of Australia, together with an increase in drinking age to 20.  That’s one way to put the dampener on Schoolies Week.

Christmas Dinner at the Assange house

I don’t really understand how people can think there is a justification for Wikileaks releasing thousands of diplomatic exchanges, and letting the fallout, um, fall where it will.  I mean, I know that there is an initial pleasure of hearing secrets, and having nation’s real assessments of their friends and neighbours made perfectly clear, but surely it doesn’t take much reflection to realise that international diplomacy is very similar to ordinary personal relationships writ large.   Just as it doesn’t pay to always be upfront about your feelings and assessments when you’re, say, having Christmas lunch with a relative whose company you don’t particularly relish, there are reasons why nations says things between themselves that are best kept secret.

I was happy to see that this was brought out in a recent Q&A in the Guardian when Julian Assange was asked:

I am a former British diplomat. In the course of my former duties I helped to coordinate multilateral action against a brutal regime in the Balkans, impose sanctions on a renegade state threatening ethnic cleansing, and negotiate a debt relief programme for an impoverished nation. None of this would have been possible without the security and secrecy of diplomatic correspondence, and the protection of that correspondence from publication under the laws of the UK and many other liberal and democratic states. An embassy which cannot securely offer advice or pass messages back to London is an embassy which cannot operate. Diplomacy cannot operate without discretion and the protection of sources.

In publishing this massive volume of correspondence, Wikileaks is not highlighting specific cases of wrongdoing but undermining the entire process of diplomacy. If you can publish US cables then you can publish UK telegrams and UN emails.
My question to you is: why should we not hold you personally responsible when next an international crisis goes unresolved because diplomats cannot function.

To which the boy of many hair styles  non-answers:

Julian Assange:
If you trim the vast editorial letter to the singular question actually asked, I would be happy to give it my attention.

Maybe Julian is all high-minded and a devotee of Kant at his most idealistic, who argued there was never any room for lies, ever.  If so, I hope Assange is consistent, and has Christmas days like this:

Mother:  Julian, so nice that you could make it.  Look, your brother George and his new partner Andrea are here.

Julian:  George!   Yet another woman who’s moved in with you?  Let’s see if it can last more than a year this time; they usually suss you out before then, don’t they?   I hope you’ve had the chlamydia you caught from the last one treated.  (Yes, guess which department the last leak came from.)  And don’t worry, the string of bastard children you’ve left behind you are on the public record already; it’s not like they’re a secret from anyone.

Curse you, advertising (a brief observation)

It was quite a few years ago now, I think, that there was an advertisement on TV in Australia for some new, small-ish car (perhaps a Nissan?) aimed at the Gen X set which actually showed as a feature a hook on the side door from which you could hang the plastic bad holding your takeaway food while you speed home to your inner city apartment. 

Ha, I laughed.  What a ridiculous idea that someone would buy a car for a gimmicky hook to help carry take away food.

But now, whenever I am bringing Chinese or Thai food home, and trying to turn corners gently so that the stack of plastic containers in the plastic bag doesn’t topple over, open and start spilling green curry (or some such) on the floor, I think to myself “gosh, it would useful to have one of those fast food hooks in this car.”

I feel certain this is going to haunt me for the rest of my life.

Yet more on small nuclear

I mentioned small nuclear power generators once already today, but I didn't realise that a good, fairly recent article had just appeared at Discover too.

There are several companies vying to get the lead in these new-ish breed of reactors. Toshiba's is small but has a long, long life:

Toshiba’s 10-megawatt reactor design promises to be a marvel of low maintenance. It is intended to be sealed and run for up to 30 years without refueling, relying on uranium enriched to nearly 20 percent uranium-235. (Typical reactors use a mix that is only about 5 percent energy-rich uranium-235; the rest is more common uranium-238.) Hyperion’s 25-megawatt prototype, which is based on technology developed at nearby Los Alamos National Laboratory and is similar to reactors long used on Russian submarines, gets by with more conventional levels of uranium enrichment but could still run 8 to 10 years without refueling.

There's another company working on a high pressure water cooled one, but the Toshiba and Hyperion designs use molten sodium and lead bismuth (respectively.) The article says:

Without the risk of water boiling, the reactors can run at higher temperatures, producing enough heat to extract hydrogen from water for use in fuel cells. And if one of these reactors melted open, there would be no venting, just a well-contained hot mess underground.

Well, I'm not sure residents nearby will feel so comfortable about such a leak.

This is the thing that does give me reservations: the articles about these usually say that mini nukes are intended to be buried. But surely that is an issue for an country or region that is earthquake prone. I'm not entirely sure why burying is seen as the attractive option (I think it is meant to provide terrorist resistance, but I am not sure if there are other operational reasons for it.) I suspect most people would prefer to keep the things above ground, even if it means paying for a well armed security force.

All very interesting anyway.

A whole bunch of links

I’m not sure how blogging will go this week. I’ve got a major change to software and the office network going on, as well as a Great Big Tax Catch Up to worry about.

But I’m still reading the net and saving links for later. Here’s a bunch of them for your reading pleasure:

* well, let’s start with one from last month that I forgot to talk about: pancreatic cancer is a nasty thing, and it appears it lurks around for decades before it finally reveals itself, and then it’s usually too late:

Genetic analysis of tumours by the Howard Hughes Medical Institute and Johns Hopkins University suggested the first mutations may happen 20 years before they become lethal….

The Pancreatic Cancer Research Fund welcomed the findings, but said that research was underfunded in the UK.

Chief executive Maggie Blanks said: "Survival rates have not improved in the past 40 years and whilst the disease is the UK's fifth biggest cause of cancer death, it receives less than 2% of overall research funding.

It does seem odd that such a big cancer gets so little funding. Some cancers lead a charmed life as far as funding is concerned. Others are the crazy axe wielding psychopath bridesmaid that never catches the bouquet.

* Speaking of cancer, there was a good article in The Independent about how radiation is our friend. Sort of. In low doses. I didn’t know many of things noted in the report:

One striking piece of evidence for this comes from radiologists themselves. They spend their professional lives exposed to radiation, in the form of X-rays and computed tomography (CT) scans, so you might expect them to have higher rates of cancer. But they don't. They have less cancer and they live longer than physicians in other specialities.

With modern safety measures, the actual dose received by radiologists is only slightly higher than for the general population. But that may be enough to give them an advantage. Sir Richard Doll, the leading Oxford epidemiologist who first linked smoking with lung cancer in the 1950s, published a study of British radiologists in 2003 which showed that those who entered the profession between 1955 and 1970 had a 29 per cent lower risk of cancer (though this was not statistically significant) and a 32 per cent lower death rate from all causes (which was statistically significant) than other physicians.

A similar study in the US compared workers servicing conventionally powered and nuclear-powered ships. Significantly lower death rates were found in the nuclear workers compared with the others.

* Did Harrison Ford have one too many drinks in the Green Room before this Conan O’Brien interview? Quite possibly, but it’s still a funny interview.

* I’ve been complaining for years that Sony would not release its e-reader in Australia. Now it finally has, and I’ve already got an iPad.

The only problem I’m finding with reading on the iPad is that I’m continually distracted to go back to the internet, or see if there is someone on line with whom to play a drawing game.

* AN Wislon gives a favourable review of a new biography of Tolstoy.

I know little of this subject, but it certainly seems an interesting one. I’ll probably get lazy and see that recent movie on DVD instead.

* A new European study indicates that more protein is a good idea for weight loss:

If you want to lose weight, you should maintain a diet that is high in proteins with more lean meat, low-fat dairy products and beans and fewer finely refined starch calories such as white bread and white rice. With this diet, you can also eat until you are full without counting calories and without gaining weight. Finally, the extensive study concludes that the official dietary recommendations are not sufficient for preventing obesity.

How much protein? It seems the successful diet was a "high-protein (25% of energy consumed), low-GI diet". I'm not sure how much protein you have to eat to get 25% of your energy.

* Barry Brook and others set out why nuclear power is the cheapest way to seriously reduce greenhouse gases in the long run.

I’m still speculating that mini nuclear reactors, if they ever get licensed, may be a faster way to scale it up than big reactors of current design; but that’s just my guess. And spreading that radiation around may well be good for us!

Sunday lunch

Spied in the yard today:

(My camera’s not working as well as it used to, but it wasn’t an expensive one in the first place.)

Oils are oils

A somewhat interesting article in the New York Times suggests that, once you heat them up in frying, even the experts can't taste the difference between very expensive olive oils, and things like canola oil:

The refined olive oil and two of three extra-virgin olive oils I tested began to smoke at a respectable 450 degrees. The inexpensive extra-virgin oil started to smell of rubber and plastic almost as soon as it became warm, and fumed at 350 degrees.

After I’d heated them, none of the olive oils had much olive flavor left. In fact, they didn’t taste much different from the seed oils.

To get a set of more expert second opinions, I took the olive oils to a meeting of the University of California’s olive oil research group. This panel of trained tasters evaluates oils from all over the world to provide guidance to California’s young olive-oil industry.

In a blind tasting of the four unheated olive oils, the six tasters easily distinguished the medal winners from the cheaper oils and found many interesting aroma notes in them, from tea and mint to green banana, stone fruit and cinnamon.

For the second blind tasting, I heated each oil to 350 degrees for five minutes. I also heated a sample of the Spanish oil more gently, to 300 degrees, to see whether it might retain more olive flavor.

The panelists said nothing as they swirled and sniffed the heated oils in their small tasting glasses, tinted blue to eliminate any consideration of color, then sipped, slurped and spat. The first spoken comment, immediately seconded by most of the panel members, was, “These oils all taste like popcorn.” In fact the panel ranked the heated light oil higher than the heated pricey California extra-virgin oil, whose pungency was no longer balanced by a spicy aroma and had become overbearing.

Well, I find that interesting, anyway.

I must admit, though, I do like the smell of olive oil as it is heated in the frying pan.

Pteropod risk

I've been mentioning pteropods here in the context of ocean acidification for many years.

Here's a good Scientific American blog post summarising the current state of play, and discussing the consequences of their loss or reduction. Worth reading.

Note the reaction of the first commenter: he won't subscribe to Scientific American again because it is being unscientific. (It is, in fact, a very balanced article.) There's nothing like putting your fingers in your ears and saying "I can't hear you". (I'm sure he'll take them out to listen to Judith Curry, though.)

Symplicity itself

Australian research has come up with a possible treatment for high blood pressure that resists other treatment. It’s called a “simple” procedure, but only if you don’t mind catheter’s being shoved around inside the major blood vessels of your body:

The new procedure, developed by Baker IDI Heart and Diabetes Institute, involves a catheter device that is inserted through the groin into the renal arteries.

It emits radio waves to destroy nerves in the kidneys that play a crucial role in the elevation of blood pressure.

The device, called the Symplicity Catheter System, has already been approved for use by government medicines regulator the Therapeutic Goods Administration and may be used routinely within a year.

I’m assuming some PR company has made a bit of money coming up with that name.

Anyway, I’d be giving the dark chocolate cure a good try before I underwent that procedure.

Caring readers may recall I recently found my blood pressure was a little higher than it should be. The other morning it was down a lot; and I did have a dark chocolate Kit Kat the night before. Today it’s back up to where it was, but I had no Kit Kat last night.

Clearly, more consistent self medication is called for.

Things that caught my attention

1. the phrase “mucous coccoon” (although your average marine biologist has heard it before)

2. China will soon be building its own generic jetliner (with a lot of help from foreign friends.) I was hoping for something a little more dragon like in appearance.

3. Wake up too soon before landing (sorry, I mean, wake up too close to landing time), and you’ll probably crash, seems to be the clear message from this investigation. Do pilots have rules about this? It’s probably been studied a lot in psychology departments, I imagine.

4. Judith Curry has had her day in Washington, and her statement is on her blog. My quick read of it indicates that this is a confused, contradictory, vague, inconclusive, pointless mess, just like her blog.

She certainly seems to be a (sudden?) convert to Pielke Snr’s similarly vague view of things.

Expect some severe criticism on the climate science blogosphere soon. (Except from skeptics and policy do-nothings, for whom confusion serves their position just fine. She’s their pin up girl now, there’s absolutely no doubt.)

Update: Joe Romm is first off the block, arguing convincingly (amongst other things) that Curry completely misrepresents economist Weitzman's position. While Romm is sometimes shrill, he was spot on when he started calling Curry a "confusionist". Doesn't the fact that the main praise she receives at her blog is from a cadre of AGW complete disbelievers alert her to the fact that she's traveled far from common sense?

Big Catholic statement of the day

A bishop at a conference:

Social media is proving itself to be a force with which to be reckoned. If not, the church may be facing as great a challenge as that of the Protestant Reformation.

Um, sure... I know Facebook has a lot to answer for (I am confident that its net effect on the happiness of humanity, or at least that part of it which is female and aged between about 10 and 30, is negative) but I wouldn't have picked a downfall of the Catholic faith as one of its outcomes.

Still, makes my recent musings about hearing confession over the internet sound sensible.

Pre-emptive pig removal

I don’t often highlight “stupid political correctness for Muslims” stories lately, but this one is a particularly egregious example:

A retailer withdrew a toy pig from a children's farm set to avoid the risk of causing offence on religious grounds, it emerged today.

A mother who bought the Early Learning Centre's (ELC) HappyLand Goosefeather Farm for her daughter's first birthday contacted the store after finding that the pig was missing, the Sun newspaper reported.

The £25 set contained a model of a cow, sheep, chicken, horse and dog but no pig, despite there being a sty and a button which generated an "oink".

But ELC chiefs have since decided to reintroduce the pig, with parents who have bought the set invited to get the toy from the company's website.

It’s interesting to hear the company’s explanation:

"ELC is a truly global brand, which means we need to be aware of the full range of customer expectations and cultural differences. The decision to remove the pig from our Goosefeather Farm set was taken in reaction to customer feedback in some parts of the world.

"We recognise that pigs are familiar farm animals, especially for our UK customers. Taking on board all the customer feedback, we have taken the decision to reinstate the pig and to no longer sell the set in those international markets where it might create an issue.”

So, in a sense, it wasn’t “pre-emptive” entirely:  they had received complaints about the toy pig from other countries, and decided to play it safe in soon to be Muslim England.  (Well, it may as well be, by the sounds.)

I'm sick of this carry on about pigs and dogs by you-know-which religion. Unless I'm mistaken, it's the only culture that goes to the extreme of finding it upsetting to have a mere model of an "unclean" animal in the hands of a child. Sure, religions can have their dietary taboos, whether they be founded in ancient practical experience of relative food safety or not. (After all, I'm not going to eat a snail again in a hurry.) But to carry on about animal's mere presence, particularly in a plastic version; this is just about the stupidest hangover of some  Arabian’s grudge against a harmless animal that still exists. 

Well, maybe not.  According to Ask an Imam, Muslims hate pigs , but they shouldn’t kill them.  Lizards and chameleons, on the other hand, get this treatment:

 4. Is there a reward for killing lizards or chameleons? if so then why ?

4.Yes there is. The Prophet Sallallah Alhi wa Sallam said that the chameleon blew on the fire which Sayyidina Ibrahim was hurled in to. This was its instinctive deed that it did on the promoting of the devil, but its efforts produced no results on the fire.

So we have been ordered to kill it to protect mankind from its mischief and from its harmful flesh.

Good grief.

The future is squid

The most interesting thing in last week's episode of Last Chance to See was the close up look at the Humboldt squid. I had read something about these appearing in larger numbers lately, but don't recall ever seeing them on TV before:



The guy in that video claimed he knew a fisherman who, while swimming between boats, had been seriously attacked by a swarm of them. According to Wikipedia (who knows with what accuracy), they aren't really that big danger to humans:

Although Humboldt squid have a reputation of being aggressive, the only reports of aggression towards humans have occurred when reflective diving gear or flashing lights have been present as a provocation. Roger Uzun, a veteran scuba diver and amateur underwater videographer who swam with a swarm of the animals for about 20 minutes, said they seemed to be more curious than aggressive.^[5] In reality, there is very likely little danger to humans.

Yet further down in the same article:

Recent footage of shoals of these animals demonstrates a tendency to meet unfamiliar objects aggressively. Having risen to depths of 130–200 metres (430–660 ft) below the surface to feed (up from their typical 700 metre (2,300 ft) diving depth, beyond the range of human diving), they have attacked deep-sea cameras and rendered them inoperable. Reports of recreational scuba divers being attacked by Humboldt Squid have been confirmed.

And more:

There are numerous accounts of the squid attacking fishermen and divers in the area.

Finally, the Wiki entry ends on this slightly worrying note for those who would like their children to be able to swim in the ocean without the risk of attack by swarms of aggressive squid:

A study published in Proceedings of the National Academy of Sciences found that by the end of this century ocean acidification will lower the Humboldt squid's metabolic rate by 31% and activity levels by 45%. This will lead the squid to have to retreat to shallower waters where it can uptake oxygen at higher levels.^[24]