During the long, dark days of the Cold War, the Navy's P-3 antisubmarine aircraft logged thousands of hours patrolling the coastlines of the United States and its allies in search of Soviet submarines. Revamped to take on other missions since the end of the Cold War, the P-3 is now nearing the end of its service life and the outlook for replacing it is "bleak," two Navy under secretaries said at an industry conference yesterday. Last month, the Office of...