STEALING AMERICA'S SECRETS -- 60 MINUTES has obtained an FBI videotape showing a Defense Department employee selling secrets to a Chinese spy that offers a rare glimpse into the secretive world of espionage and illustrates how China's spying may pose the biggest espionage threat to the U.S. Scott Pelley reports. Henry Schuster is the producer.BATTLE OVER HISTORY - Bob Simon reports on what the Armenians call their holocaust - the 1915 forced deportation and massacre of more than a million ethnic Armenians by the Turks - an event that the Turks and our own government have refused to call genocide. Michael Gavshon and Drew Magratten are the producers.KATHRYN BIGELOW - Lesley Stahl talks to Academy Award best-director nominee Kathryn Bigelow about her award-winning film, "The Hurt Locker." If she's chosen, she would be the first woman ever to win in that category. Tom Anderson is the producer.