USA Today actually seems surprised that Vietnam vets in Iraq aren't making the same shopwarn cliched comparisons to the LBJ era that reporters in Iraq are making:

If there are parallels between Iraq and Vietnam, these graying soldiers and the other Vietnam veterans serving here offer a unique perspective. They say they are more optimistic this time: They see a clearer mission than in Vietnam, a more supportive public back home and an Iraqi population that seems to be growing friendlier toward Americans.

"In Vietnam, I don't think the local population ever understood that we were just there to help them," says Chief Warrant Officer James Miles, 57, of Sioux Falls, S.D., who flew UH-1H Hueys in Vietnam from February 1969 to February 1970. And the Vietcong and North Vietnamese were a tougher, more tenacious enemy, he says. Instead of setting off bombs outside the base, they'd be inside.

"I knew we were going to lose Vietnam the day I walked off the plane," says Miles, who returned home this month after nearly a year in Iraq. Not this time. "There's no doubt in my mind that this was the right thing to do," he says.

(Via Tech Central Station, which has this blurb attached to the link: "Those darn Vietnam Vets... why won't they compare Iraq to Vietnam?")