Because the time to justify a war is before we start one.
We were sold on the Idea that Saddam was a direct threat to us. We placed our "faith" in our officials having evidence which could not be revealed because of security reasons.
At this point in time, it looks like there is little evidence supporting our original justification for war and our assumption that our government knew the whereabouts - or was tracking Saddams inventory of NBC weapons.
In the beginning, Iraqi freedom wasn't cited as a cause for war. The drumbeat for Liberating Iraq from the grasp of a tyrant grew louder as the evidence became less robust.
After a while, the energizer bunny gets on one's nerves.
