Gas attacks in Syria? What red line?

Obama doesn't consider Chlorine, a big gas killer in WWI, a gas weapon...

Chemical weapons attacks in Syria may normalise war crimes, experts warn

https://www.theguardian.com/world/2016/aug/11/syria-suspected-chlorine-gas-attack-in-aleppo-kills-woman-and-two-children?utm_source=jolt&utm_medium=email&utm_campaign=Jolt08122016&utm_term=Jolt