Brilliant! I always wondered when von Neumann machines would be utilized in its potential as weapons, and your recycler swarm delivers in droves! Steve deserves immediate field promotion to a full general in charge of the new US "drone" corp. I can picture the US President giddily rubbing his hands at the prospect of casualty-less foreign adventures; the US Congress excited at the prospect of yet another industry dumping lobbyist money by truck-loads into their "campaign" coffers; and financial sector ecstatic at the prospect of servicing the new drone manufacturing industry. Let freedom ring!