CNN New Day April 9, 2014 11:48:00
The challenges of what happens when you get down there, are you yet convinced that these pings are the black box? >> well, you know, remember the frequency doesn't match. there's been some speculation that there might be some reasons why the frequency has changed. >> battery life, depth. >> consistent with it. but it's not that kind of smoking gun that you really want where it's exactly the right frequency. so after a month of this bizarre saga that we've been through, it's all come down to the cylinder of ocean, about 12 miles across or so, about three miles deep. this dark, cold, you know, a...