The FBI is facing tough questions about whether federal agents missed critical clues during their investigation of Tamerlan Tsarnaev - even after Russia raised a red flag about his radical Islamic views two years ago.
Speaking before the Senate Judiciary Committee, Homeland Security Secretary Janet Napolitano acknowledged Tuesday the government was aware of Tamerlan's trip to Dagestan last year, a volatile region of Russia plagued by Islamist violence.
Sen. Chuck Grassley: Was your department aware of his travels to Russia and if you weren't – the reason?
Janet Napolitano: The travel of 2012 that you are referring to… yes, the system pinged when he was leaving the United States. By the time he returned all investigations had been – the matter had been closed.
Did the agency drop the ball?
OutFront tonight: Congressman Michael McCaul, Chairman of the House Homeland Security.