CNN CNN Newsroom April 16, 2014 14:10:00
Be a deep, deep layer. it's hard to know what's going on in that part of the ocean. but what you're looking is you're looking at a side scan sonar return. so you're looking at a bounce from an object. so when that sound wave hits that ooze--it's almost like what we call in radar, a corner reflector. it's quite objevious. so it does make the searching easier. >> is there any reason that kind of search should continue beyond tomorrow? >> i don't think there is. first of all, these guys have been working around the clock for over three weeks, and that's tough duty, it's tough on them, it's tough ...