which raises the question is the best equipment being used to look for the missing jet? rosa flores, cnn, cape cod, massachusetts. >> and joining me now, richard quest along with vince capone, an underwater search and rescue expert who helped find the engines from the apollo spacecraft. they were found four decades after the shuttle launched 14,000 feet below the surface in the atlantic ocean. you just saw rosa's report there. is there a better way to search for this plane? >> not really. these guys are doing a great job. they are probably one of the most experienced search teams for deep water search ops, especially for aircraft. >> and so the bluefin, there is other options, and we're going to be looking at a human submersible in a few moments. but that would be very difficult because of the human eye and what it can see? >> you can only see 20, 30 feet with lights. our sonar can see hundreds of meters. we're creating images with sound. >> what about those auvs that