The Taliban are part of the FSA (Free Syrian Army), they are being supplied weapons by the USA as well as aid.
The Economist openly claims that these terrorist groups are part of the FSA(Al-Qaeda, Taliban same thing)
Their is a STASH of chemical weapons in Syria, and the terrorists have a great chance to get their hands on them... obvs the U.S. really does not care if they get their hands on the weapons as long as Syria goes down!!!