From the geniuses at the EffingBI and the Do'J'

Y'know, the only people to be trusted with guns, that we should trust to protect us.  The same people who blew two chances to stop the school murderer in Florida.
The FBI had a decade-long confidential informant relationship with the father of Pulse nightclub shooter Omar Mateen, prosecutors admitted Saturday, 12 days into the trial of his wife.
The undercover relationship with the father, Seddique Mateen, continued even though the bureau was tipped off in 2012 that its informant was himself raising money to plan a terrorist attack on the government of Pakistan.
The father’s status also played a role in the FBI’s decision not to seek prosecution of Omar in 2013 after they investigated him for violent threats, attorneys for the shooter’s wife said. If Omar had gone to prison in that case, the infamous Pulse shooting might have been avoided.

Screw these clowns, and screw their claims of being Special Agents and so forth.  If you wrote this crap into a novel half the readers would consider it unbelievable.