CNN Your Money September 1, 2013 19:55:00
Syria. it is extremely deadly and cnn's chris lawrence reminds us why the international community banned the use of these weapons. warning this report contains many graphic and disturbing images. >> reporter: describing this video as disturbing doesn't do it justice. but some attach a different word. proof. >> i have absolutely no doubt this was a chemical weapons attack. >> reporter: amy smithson is studying the use and affects of chemical weapons for years and it was the child in this video that erased all doubt. >> maybe 5 years old and the twitching of the eyes and the mouth and the arms w...