(Mods, I do not believe this is a duplicate because it is an article on how the story was leaked and downplayed)
USA Today
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In the end, as a hurricane distracted Americans, as terrorist car bombings and U.S. air strikes bloodied Iraq, the findings of a Duelfer-led investigation were quietly leaked in Washington. And after 16 months of trying, what his teams have found is less than little.
In fact, the only unconventional weapon turned up in Iraq wasn't turned up by the Americans at all, but by the other side, Iraq's shadowy resistance. In May, in an incident causing no serious injuries, insurgent fighters in Baghdad rigged an old artillery shell as a roadside bomb, apparently unaware it was loaded with sarin nerve agent. Otherwise, two or three stray shells have been discovered with traces of degraded agent — far short of the 100-500 tons of usable chemical weapons that Colin Powell warned of on Feb. 5, 2003, as he sought a U.N. blessing for the U.S.-British invasion.
. . .
President Bush's rationale for war — that Iraq's alleged doomsday arms posed an imminent threat — faded steadily in the months after the March 2003 invasion, as official U.S. rhetoric switched from "stockpiles" of weapons to "programs" to make them.
By Thursday, as Duelfer's upcoming report was broadly outlined to reporters in Washington, the focus had switched again, to Iraqi "intent" before the invasion — to what were described as hopes among Iraqi leaders during the Saddam regime of someday reviving Iraqi weapons-making.
much more
http://www.usatoday.com/news/world/iraq/2004-09-18-iraq-nowmd_x.htm