this has been going on for years... some planes involved:
N67K
N66W
N65U
https://www.thedrive.com/the-war-zone/33812/this-plane-wasnt...
A good example of this is a series of missions that one Beechcraft King Air A90, with the civil registration number N67K, flew over the greater Los Angeles area between May 28 and June 1, 2020.