Big Take

The Sixth Bureau, Episode 2: The Spy’s Diary

15 snips
Feb 13, 2026
Bradley Hall, the FBI lead investigator on the Xu Yanjun case, walks through how a spy’s intimate online diary exposed clandestine operations. He describes diary entries mixing personal life, gambling, and meticulous work logs. The conversation covers recorded recruitment tactics, a four-level source taxonomy, targeted industrial espionage, and methods used to recruit and exploit Western experts.
Ask episode
AI Snips
Chapters
Transcript
Episode notes
INSIGHT

MSS Targets Commercial Secrets

  • China's Ministry of State Security combines massive scale with a mission to steal commercial trade secrets as well as state secrets.
  • Made in China 2025 and state-driven industrial goals explain MSS targeting of aerospace technology.
ANECDOTE

Damning Hotel Recording

  • FBI agents recorded Xu Yanjun explaining MSS recruitment and operations after an expert left a hotel room.
  • The recording captured him detailing how they found and handled Western experts like Arthur Gao.
ANECDOTE

Engineer Lured Then Recorded

  • Arthur Gao, a Honeywell engineer, was invited to China and ultimately recorded giving technical talks before being targeted.
  • He later pled guilty to exporting controlled information and received probation and a fine.
Get the Snipd Podcast app to discover more snips from this episode
Get the app