Hundreds of hooded, masked protesters rampaged through Rome in some of the worst violence in the Italian capital for years Saturday, torching cars and breaking windows during a larger peaceful protest against elites blamed for economic downturn. Police repeatedly fired tear gas and water cannon in attempts to disperse them but the clashes with a minority of violent demonstrators stretched into the evening, hours after tens of thousands of people in Rome joined a global "day of rage" against bankers and politicians. Smoke rose over many parts of the neighborhood between the Colosseum and St John's Basilica, forcing many residents...