1000 Chinese researchers have left the US since spying probe intensified this summer

An illustration showing a woman spying

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Exodus of visiting researchers from China comes after arrest of at least five researchers on espionage charges

More than a thousand visiting researchers from China working at US universities have left the country since the summer, according to John Demers, chief of the Department of Justice’s national security division. This exodus comes as the Department of Justice has intensified its investigations of espionage by scientists at US institutions who are secretly affiliated with the Chinese government or military.