On July 18, 2019, Bloomberg reported on the story of Xin Zhao, a prize-winning Ph.D. from the College of William & Mary in Virginia, whose startup fled the U.S. after a federal investigation that included a failed sting, airport stops and an unfounded child-porn search.

“My dream was defeated,” says Zhao, whose crew-cut and boyish face belie the brash candor with which he tells his story. “I came here for freedom and security. Now fear is pushing us back to China.”

Inventors with Chinese last names account for one out of every 10 new patents in the U.S. today, up from less than 2% in 1975. While China lost more than 50,000 inventors to emigration from 2002 to 2011, the U.S. welcomed a net gain of more than 190,000, as measured by patent registrations, according to data compiled by the World Intellectual Property Organization, an arm of the United Nations.