Right or wrong aside we are on the brink.
The US administration has said if gas is used again, we will strike again.
The Russians and Iranians have said bomb me once shame on you bomb me twice, and we will start blowing up your stuff.
Who's going to blink first ?
Whats worse is this isn't a black and white situation. Russia is saying it was the rebels gas.
Rebels' own arsenal caused gassing: Russia
Trump's Syria strike celebrated by 'terrorists', Iran says - BBC News
If this is true, someone with a vested interest in this other than the US/Russia/Syria could conceivably provide the catalyst to escalate the situation.
I can't see what Assad has to gain from using chemical weapons.
The disturbing reports of homemade mustard gas being used by so-called Islamic State (IS) militants in Syria and Iraq, while shocking, should come as no surprise.
There is a history of modern jihadists experimenting with and sometimes using chemical weapons, dating back to al-Qaeda's training camps in Afghanistan in the 1990s.
There is also a clear link between those experiments at the time and the IS leadership's strategy against its enemies today.
"The thing that surprised me is that they haven't used it (mustard gas) earlier," says Aimen Deen, a former al-Qaeda operative who witnessed chemical experiments first-hand.
I asked him what he thought was behind IS's recent use of mustard gas against opponents in the Middle East.
"In Syria," he says, "where their opponents are other jihadists who are as suicidal and as stubborn as they are, the best way to dislodge them is to use chemical weapons.
IS, al-Qaeda, and how jihad uses chemical weapons - BBC News
Iraq says al Qaeda chemical gas plot uncovered | News | DW.COM | 02.06.2013
Isis used mustard gas on US troops in Iraq, says Pentagon