The forever war claimed 243,000 lives and cost $2.3 billion over two decades, before coming to a chaotic end with the withdrawal of U.S. troops from Afghanistan last month. But what about the costs you can’t tally? In this first of a series on lessons learned from America’s longest conflict, Will and Siva speak with Pulitzer Prize–winning journalist Spencer Ackerman about the fallout on the home front. Ackerman says the war on terror — and the lies it was built on — utterly disfigured our political culture.