CNN CNN Newsroom April 17, 2014 18:07:00
Here is visibility issues. visibility issues is something that very much could be a problem for anybody that goes down to that kind of depth we may be talking for that vessel. the airplane. >> certainly the -- vessel depths covered in the bottom with -- it is so soft that the slightest disturbance will bring up a dust cloud. and -- whatever devices used to poe down there, whether it be an rov or submersible they all are going to have vertical thrusters. when they thrust had thrust up, that is going to disturb the bottom and the dust cloud will come up, we call it dust cloud. the cloud stabilit...
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