PHILADELPHIA (CBS) — Police say 16 Antifa protesters were arrested on Saturday after clashing with officers in Center City. Organizers of the protest rallied dozens to meet at City Hall to oppose the Blue Lives Matter March being held at the Liberty Bell. Philadelphia police say 75 Antifa protesters were in the area of Broad and Arch Streets around 11:30 a.m. During the protest, police say, several members started to fight with police. Sixteen Antifa protesters were arrested. Nine of those protesters were issued citations and seven were charged with disorderly conduct. The Blue Lives Matter March, organized by a...