Venezuela protesters block roads to pressure president

Protesters blocked major roads in Venezuela on Monday to raise pressure on President Nicolas Maduro after three weeks of unrest that have left 21 people dead.Riot police fired tear gas at a group of masked protesters who threw stones at them in Caracas, though thousands of other demonstrators nearby rallied peacefully, AFP reporters saw."We are taking a stand so that Maduro knows he has to go," said Amalia Duran, a housewife of 41.