FILE - In this Nov. 1, 1971 file picture, President Richard Nixon, center, talks with adviser Henry Kissinger, left, and Secretary of Defense Melvin Laird on the steps of the Executive Office Building... more 
FILE - In this Nov. 1, 1971 file picture, President Richard Nixon, center, talks with adviser Henry Kissinger, left, and Secretary of Defense Melvin Laird on the steps of the Executive Office Building in Washington. In 1969, the three pondered plans to drop atom bombs on North Korea in retaliation for North Korea's shootdown of a U.S. reconnaissance plane. Sixty years after the start of the Korean War, recently released declassified documents have helped fill in the history of U.S. nuclear threats against North Korea over the decades. less 
1 / 1
Associated Press | Photo By HWG, File
Sun, Oct 10, 2010 12:09 AM EDT