Hay Stack Problem News Today

Pinging. and just pick up the signal is very complex. as you look at the water, you could be very close to where the pinger is and see no acoustic response and you could be further response and see a response. so the needle in the hay stack problem is really true. >> even though the search area has shrunk so much. rob, i wanted to ask you about that. they wont send a submarine down until the search area is narrowed further. right now eithits the size of houston. you how small must it be? >> well...