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How much was known before September 11, 2001, and why did the warnings fail to prevent the attacks? In Episode 1 of 9/11: The Full Story, host Charles Denyer examines the documented intelligence failures, missed warnings, and decisions that preceded the attacks of September 11, 2001. The official record shows that in the months leading up to 9/11, U.S. intelligence agencies were receiving repeated warnings about Al Qaeda's intention to strike the United States. By the summer of 2001, senior counterterrorism officials were describing the threat environment in increasingly urgent terms. This episode traces several of the most consequential warnings and investigative failures documented before the attacks. Among them was the August 6, 2001 Presidential Daily Brief titled "Bin Laden Determined to Strike in U.S." Weeks earlier, an FBI agent in Phoenix had raised concerns about individuals of investigative interest attending American aviation schools and recommended a broader review. The recommendation was not acted upon. In Minnesota, FBI agents investigating Zacarias Moussaoui became alarmed by his interest in operating large commercial aircraft. Their efforts to search his belongings were blocked at FBI headquarters. At the same time, the CIA had identified future hijackers Nawaf al-Hazmi and Khalid al-Mihdhar in connection with an Al Qaeda meeting overseas. Critical information about the men was not shared with the FBI in time for them to be located and monitored inside the United States. The episode also examines foreign intelligence warnings, Richard Clarke's efforts to elevate the Al Qaeda threat within the White House, and the institutional barriers that prevented separate pieces of intelligence from becoming an actionable warning. Taken individually, each can be described as a failure of process, communication, or judgment. Taken together, they raise a more difficult question: how did so many warnings, across so many agencies, fail at the same time? In this episode: The escalating Al Qaeda threat reporting in 2001The August 6 Presidential Daily BriefThe Phoenix memo and aviation school concernsThe investigation into Zacarias MoussaouiIntelligence surrounding Nawaf al-Hazmi and Khalid al-MihdharForeign intelligence warnings before September 11Richard Clarke's attempts to escalate the threatThe structural and individual decisions behind the failures Next: Part Two examines the 102 minutes between the first impact at 8:46 a.m. and the collapse of the North Tower at 10:28 a.m. #911TheFullStory #September11 #911 #HistoryPodcast #Documentary #InvestigativeJournalism #AmericanHistory #NationalSecurity #IntelligenceFailures #WarOnTerror

September 11, 2001 changed the course of modern history. More than two decades later, many questions surrounding the attacks, the intelligence failures that preceded them, and the decisions that followed remain the subject of continued public interest. Hosted by Charles Denyer, 9/11: The Full Story is a 15-part investigative documentary series that examines the documented record behind one of the most consequential events of the twenty-first century. Drawing on decades of experience engaging with senior U.S. political and national security leaders, alongside publicly available records, official reports, and historical evidence, the series explores the people, institutions, and decisions that shaped both the attacks and their aftermath. Each episode investigates a different chapter of the story, including intelligence failures, the 9/11 Commission, the expansion of surveillance, the War on Terror, foreign policy decisions, and the long-term consequences that continue to influence American government and global affairs. Rather than asking listeners to accept a predetermined conclusion, the series presents documented evidence, historical context, and informed analysis, encouraging audiences to examine the record and draw their own conclusions. #911TheFullStory #September11 #911 #HistoryPodcast #Documentary #InvestigativeJournalism #AmericanHistory #NationalSecurity #WarOnTerror #PodcastTrailer