used or not, this was the largest casualty figure in the history of the syrian conflict in the last two and a half years. if proven, this would be a game changer not just for the united states but for the international community. even though we do not have independent nchgs aboinformatio whether chemical weapons were used. the burden of proof lies on assad shoulders. he can convince the people by allowing u.n. inspectors who are already in damascus, you have a strong u.n. team to visit and grant access to his part of the eastern part of damascus in order to verify whether chemical weapons or gas were used a few days ago. >> i'm going to interrupt. we have fred back on the phone