The wife of US scientist Youlin Chen, detained in China, says President Trump will ask Chinese President Xi to release him, when the pair meet this week ▻ ↧ EXCLUSIVE: Wife of US seismologist held in China says Trump will a... Yufang Rong said she feared that Beijing planned to try her Chinese-born husband, Youlin Chen, on fabricated espionage charges even though his US-funded research was openly published, used publicly available data and was done in collaboration with Chinese scientists.