China detains US nuclear test researcher Chen Youlin on espionage charges, family calls case wrongful

According to Global Reach, there are "suspicions within the US government that Chen's arrest was spurred by China's conduct of nuclear tests in violation of the Comprehensive Nuclear Test Ban Treaty".

China has detained a US seismologist who tracks nuclear tests for nearly two years on espionage charges, his family says.

The group said Chen's expertise would give China "an opportunity to learn as much as possible about US seismic detection methodologies so they can establish countermeasures that allow them to circumvent the treaty".