Experts overseeing the destruction of Syria\'s chemical arsenal have begun securing their work sites, the Organisation for the Prohibition of Chemical Weapons and the UN said in a statement. \"Joint work with the Syrian authorities has begun on securing the sites where the team will operate,\" said the statement, which detailed the activities of the team\'s first day of work on Wednesday. \"In addition, planning continues for one of the team\'s immediate tasks, disabling Syria\'s chemical weapons production facilities, which should begin soon.\"