For those of you that are not in the know … the LHC is the new Super Collider being run by CERN in an attempt to find the Higgs Boson.
There have been some Kooks that have looked at it and determined that this may just cause the end of the world! They look at the maths and based on some fringe physics determine that we may just create a black hole that may gobble up the earth, ignoring that the same physics predicts that any such black hole will just evaporate in a puff of Hawkins radiation.
Just in case though, I have added a link for your convenience http://hasthelargehadroncolliderdestroyedtheworldyet.com/. I have inspected the source code for website and the author offers a full refund if he is found to be incorrect