Unlike Vietnam, we are beloved by the people we are saving.
Unlike Vietnam, our president and his cabinet officers are leveling with the nation about the costs of victory and likelihood of defeat.
Unlike Vietnam, we have the support of the international community.
Unlike Vietnam, it is particularly popular in the region where the war is being fought, and among the alleged audience abroad we seek to impress with our wisdom and resolve.
Unlike Vietnam, our actions are not inspiring anyone to take up arms against us and thereby increase the level of threat we face.
That is just a small sample. Oddly, I think many neoconservatives feel this is true. Certainly Bush and Co. seem to believe in these ideas, at least to a certain degree.
Sadly, Iraq is becoming a 21st century Vietnam more and more each day.

