As the 25th anniversary of 9/11 approaches, a 2014 episode revisits a single sentence written in the aftermath of the attacks. This sentence, part of the Authorization for Use of Military Force (AUMF), has become the bedrock of the U.S. war on terror. Reporter Gregory Johnsen details the origins and consequences of this crucial legal text. The AUMF, a mere sixty words, has blurred the lines between war and peace. The episode explores the chaotic meetings that followed 9/11 and features insights from Congresswoman Barbara Lee and former Congressman Ron Dellums. It also includes perspectives from former White House and State Department lawyers John Bellinger and Harold Koh. This legal language is linked to controversial actions like Guantanamo, Navy Seal raids, and drone strikes. Journalist Daniel Klaidman, legal expert Benjamin Wittes, and Senator Tim Kaine discuss its interpretation and future implications. Further details about the episode and how to support Radiolab are available.