Police detained nearly 200 people at three US universities on Saturday as they cleared pro-Palestinian encampments, in the latest campus clashes triggered by protests over Israel’s war on Gaza. On the East Coast, police in Boston detained about 100 people while clearing a protest camp at Northeastern University, with social media posts showing security forces in riot gear and officers loading tents onto the back of a truck. The action was taken after some protesters resorted to “virulent anti-Semitic slurs, including ‘Kill the Jews,'” Northeastern University claimed in a statement on social me…