The CIA has at last admitted the obvious: there never were WMDs in Iraq:
In his final word, the CIA’s top weapons inspector in Iraq said Monday that the hunt for weapons of mass destruction has “gone as far as feasible” and has found nothing, closing an investigation into the purported programs of Saddam Hussein that were used to justify the 2003 invasion
Contrast to this in June 2003:
Bush confident of finding banned Iraqi weapons: President hits back at critics on WMD question. President Bush dismissed what he called “revisionist history” about the war in Iraq on Tuesday, and his spokesman said the president is still confident a Pentagon-led search will find Iraq's suspected weapons of mass destruction.
How many soldiers and civilians died in pursuit of this mirage?
Update: Here's a fuller account of the Iraq Survey Group's final report and a link to the GPO's official edition of the Comprehensive Revised Report with Addendums on Iraq's Weapons of Mass Destruction (Duelfer Report).