Grow up ya wee fuckers, this is serious military technology.
Us troops in Iraq have impressed me with their ingenuity. when they enter a room to be cleared (for booby traps etc) they spray silly string to detect trip wires, this string can shoot up to 10 feet and if it hits the wires it hangs on them showing them up, if none are there it falls to the floor.
Up until now the Insurgents have thought that yanks have been having parties all over Iraq, another reason to hate them in their books.
The military do not discuss tactics like this in public, don't worry, I'm no Geraldo giving away secrets as this is no public knowledge, as is medics using tampons to plug bullet holes and using prisoners to clear minefields, only kidding about that last one as that would be wrong ---- or would it ?