Secretary Kerry says Syria is failing to comply with chemical weapons deal . U.N. mediator Lakhdar Brahimi calls peace talks in Geneva a "waste of time" The Associated Press contributed to this report. Meanwhile , Syria has failed to hand over known chemical weapons on time .
Secretary Kerry says Syria is failing to comply with chemical weapons deal . U.N. mediator Lakhdar Brahimi calls peace talks a `` modest beginning '' Negotiations on halting Syria 's civil war are supposed to resume Feb. 10 . Meanwhile , Syria has failed to hand over known chemical weapons on time .