h.l. hundley, i was in charge of the excavation and recovery of that submarine. we found a crew of eight men. they were still inside the submarine, dealing with forensic analysis and identification and facial reconstruction of those individuals. with the navy shipwrecks, we've worked on everything from the d-day shipwrecks off normandy beaches to a scuttled revolut n revolutionary war fleet up in penobscot river in maine. we're involved in the commemoration of the war of 1812, and we proposed to relocate and excavate the shipwreck site. probably one of the best known and preserved of the navy's war of 1812 vessels. >> so you dive in the water itself. what is it like to dive in the water that's hard to see through? >> visibility is not very good at all. the best it ever gets is a foot or two. it's, you know -- and it's hard to -- it is hard to measure and read tapes and work. you almost have to work by braille, by feel and touch. you can get used to it. if you've worked in black water, you get used to maneuvering around when you have limited visibility and also de