Former KGB Spy Jack Barsky: Surveillance Detection
6:04
Former KGB Spy Jack Barsky: One Time Pad
6:36
Countering Physical Surveillance
7:03
Was Putin a good KGB agent? | Jack Barsky and Lex Fridman
23:24
How to conduct surveillance/surveillance detection
8:58
The First Task Assigned to New KGB Agents | Jack Barsky
14:22
How to use the Delta X counter surveillance sweeping system: setup, preparation and detection
17:09
How I Exposed Government Secrets & Went On The Run | Minutes With | @ladbiblestories
4:44