One day after Columbia University called on law enforcement to arrest more than 100 pro-Palestinian protesters, students continued to occupy part of the campus lawn. Dozens of police stood outside the university gates on Friday. Inside, it looks like a massive picnic. Chants from the loudspeaker go between “Free Palestine” and reminders to clean up and get food if protesters get hungry. [time-brightcove not-tgx=”true”] Marie Adele Grosso, a 19-year-old Barnard College student was among those arrested Thursday.