There was no "chemical attack" . You don't deploy Sarin gas via surface contact small rockets. It's deployed via artillery shells or bombs that that explode hundreds of feet in the air and areosolize the"gas" into microscopic droplelets, disbursed over a wide area. We know that wasn't done because the death toll would have been in the thousands. Likewise, there WERE Mustard gas victims, too. You can account for this by listening to the local villagers who saw what happpened. The "rebel", *our* allies, had an ammunition dump next to a civilian area. The stored chemical weapons in that ammunition dump were attacked and destroy in an air strike by Syrian jets. An explosion, either by accident or becausem*our* "rebel" were using the livalmcivilians as human shields, released a relatively small cocktail,of chemical weapons that killed 300 people. But what are our "rebels" doing with banned WMD's. We attacked the wrong people.