An audit released Tuesday found that the quality of the terrorist watch list has improved since it came under fire in 2009, after Umar Farouk Abdulmutallab tried to detonate an explosive device onboard an international flight to Detroit. Abdulmutallab was known to U.S. intelligence agencies but was not flagged on the watch list.
In this courtroom drawing, Umar Farouk Abdulmutallab (left) appears in federal court in Detroit on Oct. 4, 2011, with defense lawyer Anthony Chambers. Abdulmutallab is on trial for attempting to bring down a jetliner with a bomb in his underwear on Christmas 2009. (Associated Press)