The Navy's newest guided missile destroyer was christened Saturday with the name of a fighter pilot who spent 7 1/2 years in captivity in North Vietnam, received the Medal of Honor and served as presidential candidate Ross Perot's running mate. Four Medal of Honor recipients and seven former prisoners of war attended the ceremony at Bath Iron Works that marked a milestone in construction of the 9,200-ton ship named for Vice Adm. James Stockdale. Stockdale's widow, Sybil, who suffers from Parkinson's disease and uses a wheelchair, let loose a champagne bottle propelled by rope that swung across the Stockdale's bow....