Errol Morris: The Unknown Known

Eleven years ago the United States invaded Iraq. Donald Rumsfeld led that invasion as President Bush’s defense secretary. He became known at the daily Pentagon briefings for his colorful and circuitous statements... a man utterly confident that the U.S. was doing the right thing, despite mounting evidence that the war was not as well planned as it could have been and - in fact - had been waged under false pretenses. Donald Rumsfeld is now the subject of a new documentary by Errol Morris.