Asked about the case of U.S. national Youlin Chen, China's foreign ministry said there was no "wrongful detention," but it did not deny the scientist was imprisoned.

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…