Treachery by double agents

One renowned double agent, George Blake, claimed in 1990 that he had betrayed 600 agents working for the UK intelligence services.

1. Espionage
2. Collaboration with the enemy
3. Betrayal

1. Moles in espionage

1. Coercion by security forces

1. Recruiting agents of influence

1. Treason
2. Double-standard
3. Betrayal