With new paint and grease, Navy tries to lengthen subs' life
GROTON, Connecticut - As it tries to get the most out of each of its $2.6 billion attack submarines, the U.S. Navy is finding a lot depends on the right paint job.

GROTON, Connecticut - As it tries to get the most out of each of its $2.6 billion attack submarines, the U.S. Navy is finding a lot depends on the right paint job.