Bullschitt.
"We were wrong, terribly wrong." - Robert McNamara, on America's involvement/strategy in the Vietnam quagmire.
The fact you are quoting McNamara, speaks volumes, but be that as it may, the fact that thanks to HIM, the war was poorly executed, DUTY ain't a democracy, as MM said, you don't get to choose. If you dodged, you're a coward, at least in *MY* eyes and that's really all that matters..