All I have to say is: HIGGS!!!!!!!!!

That d@*%^ little particle will be one of the biggest steps forward in understanding our existence, I for one CANNOT WAIT!!!!!!!!

Oh, did I mention they'll be able to recreate conditions analogous to those in the first billionths of a second after the birth of the Universe? Because they will.

And about the black holes; yes, it's a possibility, but they will be on the nano-scale or smaller and will not be stable enough to do any damage.

I'm kind of an amateur particle physics enthusiast, so this is more than a little exciting for me.