Just watched a great little documentary on Discovery - made about the raising of Gus Grissom's "Liberty Bell 7" Mercury spacecraft back in 1999. Fantastic footage and they managed to get it up after 38 years of existence 15,000 feet under the waves. I hadn't seen this before, and it was well worth watching.
http://aesp.nasa.okstate.edu/fieldgu...cury/mr-4.html