palestinian gunmen through a tunnel that went under the israeli border, 13 armed hamas gunmen came out. they tried to attack a civilian farm within israel. israel has the iron dome system to protect it against the rockets. it's done astoundingly to protect against the rockets. but it has no high-tech response to tunnels. basically a medieval military technology. and so what the civil defense forces are doing is looking for the intranses to the tunnel, some not far from the border and within houses, and they're hidden. that is the first job of the army. it's very difficult to tell now in advance how long that task will take to complete. >> a pretty good job of finding those guys with infrared technology, and able to counterattack. i guess one of the issues here is a bit of a conundrum, if you like, for israel, the fact that