Amid sharp criticism of intensifying anti-Semetic rhetoric, encampments popped back up at Columbia University Sunday as students continued to protest the war in Gaza at the uptown Manhattan campus. The encampment, which appeared to include a number of tents, were set up on the university’s southwest lawn just days after the NYPD arrested more than 100 students demanding the university divest from Israel. The protesters have been sleeping on the grass without any sort of shelter for three nights. “And as they were arresting the students on that lawn we all moved to this lawn as a way of saying...