This week, international students at the University of Pittsburgh and Carnegie Mellon University, among other Pennsylvania colleges, had their visas revoked by the Trump administration.

The new rules published on Sept. 25 by the Department of Homeland Security — which would affect many of Pitt’s more than 3,100 international students — seek to create fixed terms of up to four years for student visas, as well as new applications for international students to extend their stay in the United States.