Syrian rebel propaganda

" But the Islamic State of Iraq and Syria has stayed cohesive while avoiding clashes with the military of President Bashar al-Assad of Syria, who seems content to give the group a wide berth while destroying the other rebel groups."  Regarding the last sentence: the lousy Syrian regime is capable of the most cynical criminal maneuvers and ploys--and it has a history of that--but this particular accusation has been self-servingly peddled by Syrian rebels without an evidence whatsoever.  If the reporter has evidence other than rumors, it should have been provided. But let us face it: when the Syrian regime fights ISIS, the Syrian rebels scream: they are killing Sunnis.  And if they don't fight them, they scream: they are collaborators with ISIS.