Detailed text transcripts for TV channel - CNN - 20180709:15:09:00
They're in the water. if they would have to communicate with the child, how do they? i know how we would communicate in clear water, if we're diving together. but if it's -- if it's completely dark, if it's completely murky, what do they do? >> typically, it's hand signals. it's one, one two, one two three, you have stop, go, i'm having a problem. they'll tug on the back of your buddy's fin. and they can reach back and do the same thing. and in the full face masks, you can talk underwater if you're real close to each other. and get some knowledge from that. that being said, it's not real effic...