Open this photo in gallery: Pro-Palestinian student protesters gather in April at an encampment on the campus of McGill University in Montreal.GRAHAM HUGHES/Getty Images Michael Byers holds the Canada Research Chair in Global Politics and International Law at the University of British Columbia. A cold wind is blowing through university campuses, with the Trump administration cutting funding for institutions seen as being soft on antisemitism, and U.S. immigration officers detaining student protester Mahmoud Khalil. These actions will have a chilling effect on university presidents everywhere, including in Canada. To be clear: It’s always illegal to threaten violence. However, the broader...