The American Institute of Physics today published a News Update stating that the creation of a micro black hole that would swallow up the Earth won't happen. They cite an argument which claims that if micro black holes were created one would not find the number of old stars that do exist because they too would fall victim to the micro black holes. They say that any micro black hole that was created would have such a brief existence that it could not absorb any more matter.
The LHC was designed to search for new particles and verify the Standard Model of elementary particles and with luck find some supersymmetric particles predicted by String Theory. The object is to collide protons producing a mini big bang consisting of a quark soup from which new particles might emerge. The likelihood of these events happening is rather low so it will take several months before any meaningful result can be determined.