I think it has to do more with whiny-ass liberals thinking there is such a thing as a cleanly fought war. Guess what, civilians get killed. Shit happens.
....
Ask them about the media turning the Tet Offensive into a "loss" for our boys in '68, even though we kicked the shit out of the little commie fuckers. When Walter Cronkite said the war was a stalemate and unwinnable (even after we had killed 100 VC for every one of our troops killed), it became so. Not by any action on the field, but in the halls of congress and on TV.
So Gen. McCrystal is a whiny-ass liberal? Ignore this whiny-ass liberal while you're at it:
The war in Vietnam was not lost in the field, nor was it lost on the front pages of the New York Times or on the college campuses. It was lost in Washington, D.C. even before Americans assumed responsibility for the fighting in 1965 and before they realized the country was at war. the disaster in Vietnam was a uniquely human failure, the responsibility for which was shared by Lyndon Johnson and his principal military and civilian advisors. During the critical period in which Vietnam became an American war, a deceitful and manipulative civil-military relationship allowed the president to neglect the consequences of his decisions and deny the American Congress and public a say in the most momentous issue a nation must face.
-H.R. McMaster
He includes the JCS among those advisors who share the blame, for putting protection of their their respective services ahead of their obligations to the country in supporting Johnson and McNamara's strategy despite their reservations, and then pursuing wholly different objectives in prosecuting the war. The administration tried to apply "graduated pressure", much as they had in the Cuban Missile Crisis, while the military resorted more or less to "kill every last VC". The result was a disconnect between military activity and strategy that resulted in a war effort McMasters describes as "futile". So was Cronkite wrong?
It's a cop-out to blame the media for objectively reporting the war and not playing cheerleader. It's a bigger cop-out to blame Americans for lacking the cojones to pursue the war they way you think it should be. We fight in their name. We sure as shit shouldn't be hiding stuff from them so we can do what we "know better". If they don't have the stomach for it, we shouldn't be there in the first place.
And wandering back on topic, there's no analogy to Vietnam here except what you project on it. There's no American or international outcry about civilian casualties and this policy is motivated by neither pandering to public opinion as is wrongly assumed about Johnson's limits on the use of force or a notion of graduated pressure as Johnson was attempting to do. It's a strategic move to support the strategy of "prevent, protect, build, hand-off" - seeing as how it's being reported by the head PAO vice an unnamed leak.
Most reasonable people recognize that our use of force is discriminate, and nothing about the new policy supercedes the ability of units to defend themselves from imminent threats. It's just setting the policy that breaking contact is preferable to pursuit into populated areas, because we have more to lose from inadvertently killing civilians than not getting every last shooter. There is a strategy in place, and it isn't exterminating the Taliban to the last man.
The hippies aren't the only ones guilty of seeing Vietnam behind every boogeyman. The Vietnam analogies are false and unhelpful. As are the WWII ones. We nuked two cities and burned several others to the ground, we killed more Japanese civilians than combatants. War is indeed terrible. But it's not carte blanche to repeat those numbers.
....and I'm off to a 9:15 brief.