Does the FBI have a secret surveillance air force?

Intelligence Board Recommends Curbing F.B.I.'s Power to Use Surveillance Program - The New York Times

Suspect in military documents leak appears in court as U.S. reveals case against him

A Secret Space Plane Just Landed After a Record Stay in Orbit

Monitoring FBI Surveillance Aircraft with ADS-B and an RTL-SDR

CNN Exclusive: FBI investigation determined Chinese-made Huawei equipment could disrupt US nuclear arsenal communications

Drones used in US for surveillance: FBI chief - World News

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Does the FBI have a secret surveillance air force?

How did Jack Teixeira, the military leaker, get a security clearance?