American Scientist Detained in China for 18 Months Amid Espionage Claims

Youlin Chen, an American seismologist, has been held in China for over 18 months on espionage charges, according to supporters and U.S. Senator Edward Markey. Chen, who specializes in underground nuclear tests, was detained in November 2024 after visiting his parents in Beijing. His case has become a point of contention in U.S.-China relations, especially with an upcoming visit from Chinese leader Xi Jinping. The U.S. State Department has demanded Chen's immediate release, citing concerns over his health and the lack of judicial proceedings against him. Chen's wife, Yufang Rong, expressed worry over his well-being, noting that he has not been able to communicate freely with U.S. officials during his detention.

Key Details: • Youlin Chen has been detained since November 2024. • He was accused of espionage on May 1, 2025, but has not been tried. • Chen's work focuses on monitoring nuclear tests, funded by U.S. government agencies. • The U.S. has officially requested his release from Chinese authorities.