I've read a great book a couple of times over the years dealing with the firing up of a Collider. In the story, they turn it on and everybody in the world jumps several years into the future for a few minutes. As you can guess, it wreaks havoc on the world in many different ways. The book is FlashForward by Robert J. Sawyer.
I don't find that I'm too concerned over the whole deal. It's totally out of my control to do anything about it. I do find it interesting that no extreme groups have tried to do anything about it. It seems to me if someone radical enough thought someone was going to turn on a machine that would destroy the world, they just might try to stop it. Kinda like Jake Busey's character in the movie Contact. Creepy.