We are assured by those who know - and how do we question them- that there is only a 1% chance of the Large Hadron Collider producing mini black holes and no chance of these coalescing and drawing the whole earth into a large black hole. Notice however that the same scientists do not use probablity here; they say there is no chance but even if the probablity is infinitely small would you start it up? Anyway we shall all see tomorrow afternoon. Watch this …space? For reassurance see [1] http://blogs.indystar.com/geek/2008/09/large_hadron_co.html