HONG KONG -- As the rivalry between the U.S. and China over trade and technology deepens, the Trump administration is tightening rules on visas for Chinese students in high-tech fields such as aeronautical engineering and robotics.
Whereas students specializing in science and technology could once look forward to a five-year visa, last June the period of study was shortened to just one year. And it has become increasingly difficult for students to get a visa at all if they are concentrating on areas such as biomedicine that are part of Beijing's "Made in China 2025" plan.
