::::::::: CBC - WORLD NEWS :::::::::                    Green rush, grey market: How free weed is firing up D.C.'s pot 'gifting economy'          'Chains and padlocks': California police say parents shackled their children to beds          Black Death spread by human fleas and lice, research shows          Venezuela says 5 'terrorists' arrested others killed in attempt to arrest rogue pilot          'Rainbow dinosaur' had iridescent feathers like a hummingbird          Gunbattle in Libya's capital kills 20, closes airport          Hawaii missile-alert mistake feeds doubts over real emergency          Turkey vows to 'drown' U.S.-backed Kurdish force in Syria          Dolores O'Riordan, Cranberries lead singer, dead in London at 46          Floor collapses in Jakarta Stock Exchange tower, injuring dozens          Double suicide bombing in Baghdad kills at least 38          Sunken tanker leaves 13-kilometre oil slick in East China Sea          Trump defends self after comments, says: 'I'm not a racist'          France's attempt to outlaw fake news raises controversy          Woman dies after fire on casino shuttle boat off Florida Gulf Coast          Thousands in Philippines flee, brace for 'hazardous eruption' of volcano          4 still missing in Montecito as search and rescue ends, recovery begins