The lowdown about Syrian rebels: extremists and moderates

I don't want to upset you but the US government now admits that the moderates who are supported and armed by the US government include some extremists.  I am not making this up.  "A senior State Department official who accompanied Mr. Kerry to the United Nations meetings this week said the United States was still trying to strengthen Mr. Jarba’s coalition and suggested that some of the factions that had broken with him included extremists."