That and the possibility that the Iraqi Resistance can still pull off a Tet in Iraq that will blow the War Party right out of the tub.
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Fear not, should that happen, sirs stands ever ready to proclaim it a defeat for the Iraqi resistance.
The Tet offensive had no success at all within Vietnam , the loss of men and materiael and the exposure of operatives was so severe that General Giap was about to throw in the towell , if you beleive General Giap.
But the effect of Tet on Wlter Cronkite and the American public was pretty strong and was a "turning point" in that respect.
The opposition of American involvement allowed Fallujia to go down as bad as Hue but got nothing more than a loss of local support.
The fighting in Vietnam was ten times as tough as the fighting in Iraq , the Iriqui Resistance and the Al Queda together can't bring the threshold up any higher than they have and we are much much more patient than they .
So the real question is becomeing , how to stay rather than whether to stay. Even Senator Obama who was against the occupation before he will be for it isn't for a hasty retreat any more, by the time he is elected I doubt he will be willing to give up the gains .