The story of the original bridge of spies — and the ultimate double cross.

Now retired, 81-years-old Karel Koecher is the only foreign agent known to have breached the US agency. In this piece, he talks every detail of this fascinating espionage story with the Guardian's Benjamin Cunningham.

The Guardian is the world's leading liberal voice providing independent analysis and investigative journalism on current topics like environment, art, and human rights.

How a Czech 'super-spy' infiltrated the CIA

Similar stories