As a concerned citizen of Planet Earth, I demand that the Large Hadron Collider begin operations as soon as possible, at as high energies as possible, and continue operating until such time as it is proven completely safe to turn it off.
Given our present state of knowledge, we simply cannot exclude the possibility that aliens will visit the Earth next year, and, on finding that we have not yet produced a Higgs boson, find us laughably primitive and enslave us. Or that a wormhole mouth or a chunk of antimatter will be discovered on a collision course with Earth, which can only be neutralized or deflected using new knowledge gleaned from the LHC. Yes, admittedly, the probabilities of these events might be vanishingly small, but the fact remains that they have not been conclusively ruled out. And that being the case, the Precautionary Principle dictates taking the only safe course of action: namely, turning the LHC on as soon as possible. (c)