No it doesn't stand for Local Host Cache. The Large Hadron Collider is due to be turned on today. If we all get sucked into a blackhole or wormhole it was nice knowing you all! : )
UPDATE: Ok while the world didn't end, apparantly while the Hadron collider was running a huge 30 ton transformer blew. But that isn't all! While the particles were hurtling through the collider one of the computers controlling it was being hacked by a Greek group!
If this doesn't scare the crap out of you, I want what you are taking!