Protesters call for Congo leader Kabila to step down

By Tim Cocks and Aaron Ross KINSHASA (Reuters) - Police fired tear gas to disperse hundreds of youths gathered in the streets of Kinshasa on Tuesday to demand that Democratic Republic of Congo President Joseph Kabila step down after his mandate expired overnight. Some limited protests started after opposition leader Etienne Tshisekedi called on the Congolese people to peacefully resist Kabila, who has remained in power despite the expiry of his constitutional mandate and with no election to pick