FBI under scrutiny

At The Weekly Standard Thomas Joscelyn, who has served as a trainer for the FBI's counterterrorism division, writes,

The FBI's handling of Mateen will undoubtedly come under heavy scrutiny in the weeks ahead. FBI agents had investigated Mateen twice prior to the massacre at Pulse nightclub. Both times the bureau found troubling information but decided he was not a first-order threat. That assessment proved to be wrong—fatally so. The public needs to know what, if anything, the FBI could have done to stop the Orlando shooter.

This is a crucial question, especially because Omar Mateen was not the first terrorist to slip through the cracks, and it is reasonable to fear he won't be the last.

On at least four occasions since 2009, a jihadist has successfully carried out an attack in the United States after being investigated by the FBI. The shooting at Fort Hood, Texas (November 2009), the Boston Marathon bombings (April 2013), and the San Bernardino assault (December 2015) were all executed by terrorists who had been on the FBI's radar. The Orlando massacre is the fourth such instance. In each case, there was at least some incriminating information on the suspect, but the FBI determined it was not enough to prosecute or take other action.

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