Chemical weapons inspectors enter Douma two weeks after attack

Chemical weapons inspectors collected samples from Syria's Douma on Saturday, two weeks after a suspected gas attack there followed by retaliatory strikes by Western powers on the Syrian government's chemical facilities. The site visit, confirmed by the Organization of the Prohibition of Chemical Weapons, would allow the agency to proceed with an independent investigation to determine what chemicals, if any, were used in the April 7 attack that medical workers said killed more than 40