polybots for search and rescue (Score 2, Interesting)

It would be wonderful if we had some polybots to aid with the search and rescue effort going on at the wtc RIGHT NOW. It seems like we should be able to design small, tenacious bots that could go into the hostile, challenging terrain of the wreckage and find people below the surface. Each bot could sport one or more cameras and be driven remotely by rescue teams on the surface. Perhaps they could use gps and/or each other's relative location to pinpoint the location of folks they find in three dimensions.