On this edition of ST, we are discussing the history of the War on Terror -- i.e., the open-ended, multi-directional conflict that the U.S. government enacted some twenty years ago, in the immediate wake of 9/11 -- as well as how this war has moved both American politics and American society in increasingly authoritarian (and even racist) directions. Our guest is Spencer Ackerman, a national-security correspondent who's written for The New Republic, WIRED, The Guardian, and The Daily Beast. His new book is "Reign of Terror: How the 9/11 Era Destabilized America and Produced Trump." As noted of this work by Library Journal (in a starred review): "Ackerman delivers a tour-de-force about the transformation of the United States in the two decades since the September 11 attacks, [a book] that thoroughly and comprehensively examines how the post-9/11 security state has engulfed society.... An essential work that encapsulates the trajectory of American politics in the first two decades of the