Documents Provide Rare Insight into FBI’s Terrorism Stings

"Days before his arrest in Pittsburgh last month, Khalifa Ali al-Akili posted a remarkable message on his Facebook page: A mysterious man who spoke often of jihad had tried to interest Akili in buying a gun, then later introduced him to a second man, whom Akili was assured was 'all about the struggle.' It smelled, Akili wrote on Facebook, like a setup."