In the year 2000, a secret military task force discovered Al Qaeda operatives working in the U.S., possible including the 9/11 hijackers. They claim they were ignored or silenced by the government. The government claims they never found anything worth silencing. The truth lies somewhere in the middle. This week Shane Harris, Washington Post senior national security writer and co-host of the podcast Rational Security joins us to talk about Operation Able Danger, who saw the first hints of a cataclysmic event that proved impossible to predict, and why their story could be The Big Short for the national security apparatus.