Chemical weapons, exploited emotion

Writing at Cato.org, Doug Bandow observes:

The entire focus on chemical weapons is misguided. The travesty of the Syrian civil war is that more than 100,000 people apparently have died, not that some were killed with chemical weapons. The latter are not really weapons of mass destruction. They are difficult to deploy and not so deadly. Explained John Mueller of Ohio State University, in World War I “it took over a ton of gas to produce a single fatality. Only about two or three percent of those gassed on the Western front died. By contrast, wounds from a traditional weapon proved 10 to 12 times more likely to be fatal.” 

Why is it the Obama administration wants to reign down fire on the Assad regime for its alleged use of chemical weapons, yet the same Obama team remains silent when reports out of Syria allege rebel atrocities - including the murder or execution of children?

Update: This 'toon from Hope n' Change seems to fit: