CNN CNN Newsroom April 12, 2014 15:20:00
Unmanned. say there's a call in for the type of equipment where it would be manned, a submersible with a person inside. help me understand what that is, what that option is, and at what point would that be an asset used? >> well, having the human presence there can make a big difference. to take the human mind as well as remotely operating can give you a real edge in terms of understanding what's there. there are only a handful of countries, though, that have manned submarines capable of going as much as three miles deep. the united states has the elvin, just on the edge of being able to go as...
Source: archive.org