Located in Switzerland, LHC is a bold six billion dollar experiment to enable physicists to look back in time by recreating the conditions of the BIG BANG!However, safety concerns have been expressed by many in various scientific journals, mainly pertaining to:
1. Micro blackholes, according to the 'standard calculations' these are harmless because they would quickly decay by Hawking radiation, the problem is that Hawking radiation (which is still debated) is not yet an experimentally-tested phenomenon, and so micro black holes might not decay as rapidly as calculated, and accumulate inside the earth and eventually devour it.
2. If the hypothetical Strangelets exist, and produced at LHC, they could initiate a uncontrolable fusion where the nuclei in the planet were converted to strange matter.
Anyway, sync your watches to Central European Time 10th September 2008 when the Large Hadron Collider project becomes operational, however, the first high-energy collisions are planned to take place after the LHC is officially unveiled, on 21st October, 2008.