Anti-Olympics protest in Milan turns violent as Italy investigates suspected railway sabotage

Anti-Olympic protesters marched peacefully through Milan on Saturday afternoon, holding signs, marching arm-in-arm, singing and dancing. But when night fell, the demonstration turned violent as some protesters targeted police and their vans, and officials responded with tear gas and water cannon. This comes as authorities separately investigate a series of incidents on rail lines in northern Italy that officials fear could be coordinated sabotage.