It's OT, but since you raised the issue: How do we know that the...

It's OT, but since you raised the issue: How do we know that the gas attack was made by the Syrian government? Assad has nothing to gain from it - he (and Russia) were winning, and a gas attack is completely senseless from his point of view. And what about the islamists? Could they have faked a chemical attack for propaganda purposes or, even worse, lined up some innocent civilians and gassed them?

In war, truth is the first casualty - Aeschylus.