成人快手

Foreign students in the US have been told they'll have to leave the country if their classes are all taught online. The US Immigration and Customs Enforcement agency said people could face deportation if they do not comply with the rules. David, a graduate student from South America, is worried he won't be able to finish his doctorate and so won't be able to work as a university professor in the future.

(Image: stock picture of a student participating in online teaching. Credit: Getty Images.)