From washingtonpost.com

U.S. Had Key Role in Iraq Buildup
Trade in Chemical Arms Allowed Despite Their Use on Iranians, Kurds

By Michael Dobbs
Washington Post Staff Writer
Monday, December 30, 2002; Page A01

"A review of thousands of declassified government documents and interviews with former policymakers shows that U.S. intelligence and logistical support played a crucial role in shoring up Iraqi defenses against the "human wave" attacks by suicidal Iranian troops. The administrations of Ronald Reagan and George H.W. Bush authorized the sale to Iraq of numerous items that had both military and civilian applications, including poisonous chemicals and deadly biological viruses, such as anthrax and bubonic plague."

Full story here.