KGB Knew About This CIA Tunnel BEFORE They Even Dug It

Added: 2026-05-01

[00:00:00]They dug 1,500 ft under Berlin, but the KGB knew before the first shovel broke ground.

[00:00:08]CIA and MI6's most audacious operation, a secret tunnel straight into Soviet East Berlin to tap military phone lines.

[00:00:17]Over 3,000 [music] tons of dirt smuggled out, 11 months of digging in total [music] secrecy.

[00:00:24]Then, connection, troop movements, command chatter. It sounded like pure gold, but the Soviets [music] never reacted, not once.

[00:00:33]The reason? George Blake, trusted British MI6 officer and KGB asset from day one.

[00:00:41]>> [music] >> He sat in the planning meetings and told Moscow everything. The KGB let the tunnel run for 11 months. They sacrificed nothing important and protected [music] their prize mole.

[00:00:53]The West wasn't listening to the Soviets. The Soviets were watching the West. [music] They dug 1,500 ft under Berlin.