once weapons are out on US control all kinds of bad things can happen.

OTOH note something similar with the revered Ronald Reagan and the Missiles sold the Contras in order to pay ransom for hostages in Iran. This was a big deal at the time.

http://nypost.com/2014/06/08/how-the-taliban-got-their-hands-on-modern-us-missiles/amp/

Wow, didn't know about the stingers.

Any better sources than this about Stevens and his connection to cia registered stingers? http://www.businessinsider.com/us-syria-heavy-weapons-jihadists-2012-10