Police broke up a pro-Palestinian encampment on Tuesday at the University of Michigan, less than a week after demonstrators showed up at the home of a school official and placed fake body bags on her lawn. Video posted online by Detroit-area TV stations showed police moving people away from the camp on the Diag, a common site for campus protests. The encampment had been set up in late April near the end of the school year. Santa Ono, the school’s president, said in a statement that the encampment had become a threat to safety, with overloaded power sources and open...