The first 'they' he references are the people who testified in the Winter Soldier's 'investigation'. Kerry is repeating what they said they did, so his saying that he hasn't accused anyone of war crimes, albeit Clintonesque, isn't untrue.
I think conservatives are better served by demonstrating what a nightmare Kerry's positions and proposals are, not going back 30 years to try and make hay about his opposition to Vietnam.
Have to agree here. Found the ad to be a little weak. When all is said and done, no one will care who did what in Vietnam - Kerry *wants* to argue about Vietnam so he can dodge questions about his voting record and policy positions. Lets not throw him into that briar patch.