When Saddam Hussein killed thousands in a 1988 chemical attack on Kurdistan, America looked the other way. Joost R. Hilterman joins us to explain how that tacit support of the attack has come back to haunt the West. Hilterman's recent book is A Poisonous Affair: America, Iraq, and the Gassing of Halabja.

A Poisonous Affair is available for purchase at amazon.com