Microdots: The CIA's Tiny Secret-Message Holders

Name: Microdots: The CIA's Tiny Secret-Message Holders
Uploaded: 2017-06-24
Duration: 146100
Description: In 1971, the CIA sent coded messages to the Hanoi Hilton's prisoners of war through powdered-drink packages. How they hid these cryptic messages was quite ingenious.

In 1971, the CIA sent coded messages to the Hanoi Hilton's prisoners of war through powdered-drink packages. How they hid these cryptic messages was quite ingenious. (02:26)