New rules for foreign college students have stunned American academic institutions. The Department of Homeland Security announced Monday that all of the roughly 1 million international students currently enrolled in the U.S. must attend at least one in-person class this fall or be denied visas. We hear student reaction, and Jeffrey Brown talks to Rebecca Blank of University of Wisconsin-Madison. PBS NewsHour is supported by - https://www.pbs.org/newshour/about/funders