FBI agent arrested on suspicion of collaborating with Russian oligarch and Putin ally

Charles McGonigal had a long and prestigious career at the head of the FBI' s counterintelligence service in New York until his retirement. McGonigal, 54, who retired from the FBI in 2018, investigated a rival oligarch of Deripaska while still working for the federal agency, for which he received undercover payments, according to the indictment released…