I'm looking at it from the point of view that this is an entirely ridiculous proposition.<p>But, given that, could it work?  What would be needed?  When do you start to move into the realm where this is possible?<p>It's the MythBusters philosophy at work: show that a myth is utterly busted... then figure out how to really do it.  Preferably with a large amount of explosives... :)