Protesters holding signs reading “Trayvon Martin Lynched” marched down University Place in New York, where I happened to be, on Monday. From across the street, the marchers seemed outnumbered by police. A long line of officers walked in tandem with them, another line of police on motorcycles edged the street, and other officers, apparently of higher rank, stood nearby, along with several vans. I had no idea what to expect and wondered if the police were sent out in high numbers only to keep order or because violence was feared.