Yes, that's my understanding, that similar high-energy heavy ion collisions go on all the time due to cosmic rays hitting the atmosphere and the moon, so if they produced black holes capable of sucking up a planet, it would have happened by now. Same goes for strangelets, vacuum bubbles and all the other doomsday theories. LHC doesn't do anything extraordinary that isn't found in nature in terms of collision energy, what's special about it is that it makes lots of these collisions, and makes them somewhere where we can study their products without outside interference.
That said, us physicists are going to look mighty silly when the LHC opens up a dimensional portal and the Octosquids invade.
If the world is merely sucked into oblivion, however, I'm fairly confident there won't be an inquiry.![]()
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