chemical weapons in Syria

It is getting ridiculous.  The folks in the propaganda department of the Free Syrian Army are desperate for Western NATO attacks.  So they read the headlines that Obama stated that chemical attacks by the regime in Syria are the "red line" (meaning, that the regime will be excused and forgiven for any other attacks on the people of Syria short of chemical attacks).  So once a week, they put a video on youtube that alleges a chemical attack.  What is hilarious is that the people there are so deficient in scientific knowledge that they post a video in which a man or a two women are showing "suffering" from a gas attack.  They basically imply that gas attacks are like a bullet: they hit only a person or two and don't affect a larger surrounding.