Violent protests over alleged police brutality that began in the mainly immigrant suburbs earlier this month spread to central Paris and other cities on Wednesday night and 49 people were arrested. Clashes with police broke out after hundreds of demonstrators gathered in the Barbès-Rochechouart area, near the Gare du Nord railway station, where the Eurostar terminal is located, and the Sacré Coeur basilica in Montmartre, a favourite with tourists. Police fired tear gas to disperse about 400 protesters, but smaller groups then went on a rampage in other parts of the capital, smashing windows and overturning dustbins in near Place...