What incentive does Assad have to gas his own people? Generally people don't do things just to do them, even if they are corrupt and evil. There needs to be a motive and as of now, there's not. The only motive I can clearly see is the United States repeatedly trying to start a war there, and using any excuses necessary to make it happen. Dictators are corrrupted in the quest for power and assets. They don't just gas people for fun, there needs to be dollar signs attached. There is no cheese at the end of this tunnel for Assad, it makes no sense.
There are dollar signs attached to us having a presence in Syria, however. Just like there have been dollar signs attached to every other conflict we've started (and not finished).
Like I said, if you think U.S. politicians give a fuck about 60 dead Syrians, then you are thinking too highly of them. We start wars for the acquisition of power and assets and nothing more.
There are worse atrocities than this gas attack happening in other places RIGHT NOW and we couldn't give any less of a fuck.