China detains US nuclear expert accused of espionage, family says0

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• July 15, 2026

China has detained an American seismologist tracking nuclear tests for nearly two years on espionage charges, his family says. Chen Youlin, 54, was arrested in November 2024 during a trip to Beijing to visit his family, according to the hostage advocacy group Global Reach. The family decided to speak out after they saw no signs