William J. Perry served as undersecretary of defense for research and engineering in the Carter administration, and then as secretary of defense in the Clinton administration, and has advised presidents all through the Obama administration.
~~tag-text~~
Since the Truman administration, America has been one 'push of a button' away from nuclear war—a decision that rests solely in the hands of the president. Without waiting for approval from Congress or even the secretary of defense, the president can... SEE MORE