Robert S. McNamara, dead at 93.

"The war became his personal nightmare. Nothing he did, none of the tools at his command — the power of American weapons, the forces of technology and logic or the strength of American soldiers — could stop the armies of North Vietnam. He concluded well before leaving the Pentagon that the war was futile, but he did not share that insight with the public until late in life."

Here's an excerpt from the great Errol S. Morris documentary "Fog of War":