A special correspondent for Le Monde, Jean-Philippe Rémy, spent two months with FSA fighters in the Damascus suburbs.

Guerre chimique à Damas 投稿者 lemondefr
A special correspondent for Le Monde, Jean-Philippe Rémy, spent two months with FSA fighters in the Damascus suburbs. Remy reports the fighters were repeatedly attacked with chemical weapons while he was with them. Remy's detailed report, a recommended read, says in part:

The men cough violently. Their eyes burn, their pupils shrink, their vision blurs. Soon they experience difficulty breathing, sometimes in the extreme; they begin to vomit or lose consciousness. The fighters worst affected need to be evacuated before they suffocate. [...] In two months spent reporting on the outskirts of the Syrian captial, we encountered similar cases across a much larger region. Their gravity, their increasing frequency and the tactic of using such arms shows that what is being released is not just tear gas, which is used on all fronts, but products of a different class that are far more toxic.