But Syria 's civil war presents inspectors with significant challenges , including having to cross front lines and move through areas controlled by rebels . Inspectors were given until Friday to visit 23 chemical weapons sites . Team has yet to visit two sites because of security concerns , OPCW said . Team 's task to oversee destruction of Syria 's chemical weapons sites amid civil war . U.N. giving Syria until mid-2014 to destroy its chemical weapons sites .
Inspectors were given until Friday to visit 23 chemical weapons sites . Team has yet to visit two sites because of security concerns , OPCW said . Team 's task to oversee destruction of Syria 's chemical weapons sites amid civil war . U.N. giving Syria until mid-2014 to destroy its chemical weapons sites .