Former President Jimmy Carter today completed his first submarine dive since he left the Navy in 1953, but this time it was in a new nuclear vessel bearing his name. The USS Jimmy Carter pulled into this Navy submarine base after a night of cruising below the waters of the Atlantic Ocean off the Georgia coast. Carter was accompanied by his wife, Rosalynn, and a crew of 151. For Mrs. Carter, the boat's sponsor, it was her first submarine dive. The submarine is the first named after a living ex-president. Carter was a submariner during his time in the Navy...