A former CIA official who was the national intelligence officer for the Near East and South Asia for five years has written a blistering article about the Bush administration. In the magazine Foreign Affairs Paul R. Pillar admits that while the agency was wrong on the issue of WMD's, that was not what led to the war. In fact, says Pillar,
"It has become clear that official intelligence was not relied on in making even the most significant national security decisions, that intelligence was misused publicly to justify decisions already made, that damaging ill will developed between [Bush] policymakers and intelligence officers, and that the intelligence community's own work was politicized."
In other words, the administration didn't really care what the facts were. The war was going to happen no matter what.
In addition to "cheery-picking" bits that of intelligence that would justify an attack, Pillar also accuses Bush officials of "ignoring warnings that the country could easily fall into violence and chaos after an invasion to overthrow" little ol' me.