Italian police fired tear gas and water cannons Saturday in Rome as violent protesters turned a demonstration against corporate greed into a riot, smashing shop and bank windows, torching cars and hurling bottles. The protest in the Italian capital, which left dozens injured, was part of the "Occupy Wall Street" demonstrations against capitalism and austerity measures that went global Saturday. Tens of thousands nicknamed "the indignant" marched in major cities across Europe, as protests that began in New York linked up with long-running demonstrations against government cost-cutting and failed financial policies in Europe....