Open this photo in gallery: Tel Aviv University students Asaf Gur, left, and Yarden Perets stand on the school's campus in Israel on May 1.Ilia Yefimovich /The Globe and Mail From their silent and nearly deserted campus in Ramallah, a group of Palestinian students have been watching the spreading protests at universities in North America with a mixture of gratitude and envy. They are grateful for the pro-Palestinian stance of the students who have set up encampments at more than two dozen universities in the United States, and now several in Canada, too – and envious of the freedom of...