Eric O'Neill demonstrates the Brush Pass on CNN - YouTube
Perkley Video - Spy Dictionary: Brush Pass
How do secret agents/spies communicate with the offices they report to? - Quora
OPEN SOURCE INTELLIGENCE (OSINT) NEWS: CIA spy tradecraft, the "Brush Pass"
Russian spies living among us: Inside the FBI's "Operation Ghost Stories" - CBS News
Brush Pass Archives : Spybrary - Spy Podcast
Perkley Video - Spy Dictionary: Brush Pass
Spy School: How to Plan and Perform a Brush Contact
The Brush Pass - Project Brazen
How the CIA Forgot the Art of Spying - POLITICO Magazine
The Brush Pass - Project Brazen
Russian spies living among us: Inside the FBI's "Operation Ghost Stories" - CBS News
The Brush Pass - Project Brazen
brush-pass — Gawker
Perkley Video - Spy Dictionary: Brush Pass
The top spy cities you might not expect
Eric O'Neill demonstrates the Brush Pass on CNN - YouTube
How to Talk Like a Spy
How the FBI took down Russian spies living in the U.S. and posing as Americans - CBS News
A Spybrary SIGINT Tableau "Brush Pass" Review by Spy Novelist Payne Harrison : Cryptologic Bytes : Community : National Cryptologic Foundation
China's Five Steps for Recruiting Spies in the US | WIRED
Spies in Disguise Review: Brush Pass with Jeff and Leo Quest (96) : Spybrary - Spy Podcast
Perkley Video - Spy Dictionary: Brush Pass
The Brush Pass - Project Brazen
