Syrians intelligence cites 14 such attacks since August 21 . `` A clear pattern of regime use , '' says CNN head . The 2012 incident poses `` a very , very compelling case '' But skeptics abound -- remember Iraq 's WMD ?
British intelligence cites 15 such attacks since 2012 . `` A clear pattern of regime use , '' says the Intelligence Committee head . The August 21 incident poses `` a very , very compelling case '' But skeptics abound -- remember Iraq 's WMD ?