CNN Making the Case March 25, 2014 05:42:00
Where -- a short time ago i spoke with an ocean engineering consultant, who played a lead role in finding the air france wreckage. >> reporter: let's start with the basics here. when do they start this search and where do they start this search at the bottom of the ocean? >> that's a great question and it's kind of difficult to answer. really the search for looking for underwater doesn't really begin until, you nope, they can accurately and positively identify debris on the surface. and once they do that and start to pick up that debris on the surface and map out where they're getting it day b...
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