ROUGH CUT - NO REPORTER NARRATION<br/> <br />STORY: The United States is concerned about troubles facing Syria's Western-backed opposition but it will keep supporting Free Syrian Army leader General Salim Idris and the moderate opposition, U.S. Defense Secretary Chuck Hagel said on Thursday (December 12).<br/> <br />The United States and Britain suspended non-lethal aid to northern Syria after reports that Islamist fighters seized Western-backed rebel weapons warehouses, highlighting fears that supplies could end up in hostile hands.<br/> <br />The opposition to President Bashar al-Assad on Thursday said its military arm had invited Islamist fighters to secure its weapons depots on the Turkish frontier after an attack by al Qaeda militants.<br/> <br />"What has occurred here in the last couple of days is a clear reflection on how complicated and dangerous this situation is and how unpredictable it is," Hagel told a Pentagon news conference.<br/> <br />Hagel explicitly stated that Washington still supported Idr
