How Cuba Fits Into China’s Global Eavesdropping Strategy | WSJ

China is using bases in Cuba to monitor communications and gather intelligence throughout the southeastern U.S., a practice known as signals intelligence. Beijing and Havana have both denied planned facilities, but U.S. officials say China and Cuba already jointly run four eavesdropping stations on the island.

Satellite dishes and elephant cages are being used to listen in on military communications and tech industry secrets from the U.S. WSJ explains the technology involved, and what the U.S. is doing to defend itself.

0:00 China’s surveillance on the U.S.
0:38 Signals intelligence programs
2:19 Satellite dishes
3:33 Elephant cages
4:42 Counters

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