Search for Missing Titanic Sub Continues with Hopeful Banging Sounds Detected

The U.S. Coast Guard is providing an update on the search for a submarine that went missing while taking five people to the wreckage of the Titanic. A Canadian search plane detected noises underwater in the search area, and crews were focused on finding the origin of the sounds. The sub's disappearance on Sunday has spurred a massive response from the U.S. and Canada as search crews rush to find the missing group in the north Atlantic Ocean.