Latest Report on WMD's in Iraq

The press is having a field day with this report as they basically try to claim that "BUSH LIED!!". I think Mickey Kaus has it right when he describes what really was going on in Iraq:

If a man says he has a gun, acts like he has a gun, and convinces everyone around him he has a gun, and starts waving it around and behaving recklessly, the police are justified in shooting him (even if it turns out later he just had a black bar of soap).

Similarly, according to the Duelfer report, Saddam seems to have intentionally convinced other countries, and his own generals, that he had WMDs. He also convinced much of the U.S. government. If we reacted accordingly and he turns out not to have had WMDs, whose fault is that? Why doesn't Bush make that argument--talking about Saddam's actions in the years before the U.S. invasion instead of Saddam's "intent" to have WMDs at some point in the future? (It wouldn't necessarily make the Iraq war prudent, but it would make Americans feel more comfortable about it than what Bush has been telling them.)