CNN At This Hour With Berman and Michaela April 18, 2014 15:41:00
Jacques coustea. you know some things about the deep ocean. it's proving to be quite a mystery to us. we see an example of that in the plane. let's start with the ferry. we see this ongoing search effort. it's not a recovery, they're treating it like a search and rescue still. give us an idea of some of the challenges those divers are facing with an upturned ferry. >> it's a really difficult situation. the positive news is that there's a good chance of still recovering some survivors. but for a diver, you have to remember when you penetrate that structure from down below, it's pitch dark in th...