IIRC, reports circulated 6 months ago of chemical weapons use. At tghe time it was blamed on the rebels trying to suck the US into intervening.
This was about the time of Bengazigate. Connected? Most likely. And that would account for trace detection of chem weapons.
There’s a lot more going on than meets the eye.
The CIA are totally out of control in my opinion but we will never know the full extent of their operations.