Dangerous (?) particle colliders re-considered

What are the chances that a particle collider's strangelets will destroy the Earth?

Well, this is surprising.  Given that it has been years since I have noticed any advance on the issue of whether micro black holds from CERN could be dangerous, some are suggesting that its time to look at RHIC's risk assessment again.

Curiously, the claim is:

Johnson and Baram are calling for the new commission to look into the risks of RHIC destroying the Earth in addition to evaluating the financial aspects. A large part
of the motivation for their appeal is because of the ongoing upgrades
to RHIC. The collider is preparing for its 14th run,
where it will be operating at 18 times the luminosity for which it was
originally designed. The high luminosity will enable scientists to
conduct more detailed studies of the quark-gluon plasma's properties and
investigate how it transitions into the normal matter that we see in
the universe today.

Another area that Johnson and Baram argue begs some scrutiny is that RHIC is now running at lower energies than in the past. Somewhat counterintuitively, lower energies may pose a higher risk than higher energies. In the original risk assessment report in 1999, the scientists stated that "Elementary theoretical considerations suggest that the most dangerous type of collision is that at considerably lower energy than RHIC." That assessment referenced RHIC's original design energy of 100 GeV. Over the years, lower-energy experiments were performed, and the 2014 run will include three weeks at 7.3 GeV.