Former President Jimmy Carter was expected to take his first dive in a submarine Thursday since his Navy career ended in 1953, leaving Naval Submarine Base Kings Bay with his wife Rosalynn aboard his newly commissioned namesake, the USS Jimmy Carter. The visit and overnight dive by the Carters, which had been kept confidential for about a week, will conclude Friday with his appearance at a press conference. Lt. Cmdr. Monica Richardson, public information officer for Submarine Group 10 at Kings Bay, said the Carters will tour the base during their visit, which included an invitation-only event with local dignitaries...