U.S. Coast Guard Cutter Munro (WMSL 755) crew members board a self-propelled semi-submersible suspected drug smuggling vessel (SPSS) June.
Wreckage of USS Hornet Discovered
"CBS This Morning" travels with researchers on an extraordinary mission to find a piece of American military history: the USS Hornet. The Japanese sank the aircraft carrier in 1942. Mark Phillips reports.