“Our investigators have been in neighboring countries interviewing victims, doctors and field hospitals and, according to their report of last week which I have seen, there are strong, concrete suspicions but not yet incontrovertible proof of the use of sarin gas, from the way the victims were treated,” Carla Del Ponte, a member of the independent commission of inquiry on Syria, told Swiss-Italian television. “This was use on the part of the opposition, the rebels, not by the government authorities.”
The Syrian government has denied using chemical weapons and initially invited UN inspectors to probe a March attack in the village of Khan al-Asal near Aleppo, saying rebels used chemical weapons in that incident.
Getting involved in Syria is much more complex and risky than bombing Libya, Afghanistan or some other country.
He is regretting his "red line" comment and wants a way out