This is the first in a multi-part series of episodes marking the 20th anniversary of the U.S. invasion of Iraq, which began on March 20, 2003.

Have Americans truly learned the lessons of the failed war in Iraq? Catherine Lutz at Brown University's Costs of War Project and historian Andrew Bacevich of the Quincy Institute for Responsible Statecraft contend that the war's disastrous consequences, including hundreds of thousands killed and millions displaced, have been memory-holed. Rather than reckon with a misplaced confidence in the efficacy of military power projection, most Americans are indifferent to or generally supportive of U.S. hegemony. In Bacevich's words, a reckoning that wasn't.