This hollow Red Line blustering is about as effective as Obama repeatedly telling Amadi Nut Job that if Iran keeps developing nuclear weapons, that will not be tolerated. Have you noticed how scared Nut Job is?
Probably about as effective as Obama repeatedly telling North Korea that firing test rockets would not be tolerated - they seem really scared too. That little tin-horn dictator is probably hiding under his bed clutching his teddy.
Here's a wake-up call for Obama -- while he has been fiddling, the Genie escaped the bottle. Assad has gone ahead and prepared the Sarin gas. Obama might want to have his chemical suit and gas mask handy in case Addad holds back a few cannisters for other purposes.
Obama might want to read about how Ronald Reagan got Ahmadi Nut Job's attention 32 years ago when Nut Job personally held the American hostages captive; and how he got Muammar Gaddafi's attention in just a few hours time. P. S. It wasn't by repeatedly drawing a new Red Line in the sand.