Do black holes exist at all?

Could black holes be portals to other universes? - space - 27 April 2007 - New Scientist Space

I missed this last week. Seems that maybe it is hard to tell a black hole from a wormhole.

This is also relevant to the issue of micro black holes. As the article says:

And there might be a way to test the conjecture. Some physicists say that future particle accelerator experiments could produce microscopic black holes (see Atom smasher may give birth to 'Black Saturns').

Such tiny black holes would emit measurable amounts of Hawking radiation, proving that they are black holes rather than wormholes. But if Solodukhin is right, and microscopic wormholes are formed instead, no such radiation would be expected. "In that case, you would actually see if it is a black hole or a wormhole," he says.

An added benefit of wormholes is that they could resolve the so-called black hole information paradox.

Is there any safety significance to a micro wormhole being created at CERN instead of a micro black hole? I suspect not, but it would good to have someone who knows more than a blogger from Brisbane saying it.