A Chinese-born American seismologist who carried out US-funded research on detecting North Korean nuclear tests has been detained in China for nearly two years and will also face trial on espionage charges.

WASHINGTON: A Chinese-born American seismologist who has published US-funded work on detecting North Korean nuclear tests has been detained in China for nearly two years and faces…

The case of Youlin Chen, reported here for the first time, adds an irritant to the tense relationship between the nuclear-armed rivals as Trump seeks to keep the relationship…