CNN The Situation Room April 15, 2014 22:45:00
Crude map, essentially, and on top of that, we need more detailed information. >> do they even know for sure how deep that water is over there? >> they have an idea. they have a general idea of the depth, and they'll know if there's a trench or if there's a rise. you can actually get that from satellites, you know, is it a trench, is it a peak, is it a very flat area, but they won't know on small scales do you have a very narrow valley, do you have something small sticking up, so they have a general idea, but not detailed to the extent that they need to preprogram that bluefin to exact depths....
Source: archive.org