CNN The Situation Room April 9, 2014 22:24:00
Theyre looking for these pings. look where they picked up the pings along the way here. in these four different areas. this is separated by about 17 miles. so altogether, still a pretty big search area. around 560 miles off in. but what theyre doing here, this may look chaotic, theyre imposing an order upon the pings. the idea is you go out and create a grid in the ocean by sailing back and forth one way, then back and forth another way. and every place you can get a ping you record it and then ...
Source: archive.org