Syrian troops surround Turkish post in country's northwest

A heavily fortified Turkish observation post in the northwestern village of Morek stood surrounded on all sides by Syrian troops Saturday, a testament to the rapid advance of President Bashar Assad's forces in Syria's northwest over the past three weeks as rebel defenses collapsed.Syrian authorities took a group of journalists to tour the observation post, several newly captured villages and the town of Khan Sheikhoun, which was a major rebel stronghold until it was taken by government forces ea