Well, we’re running em in an effort to destabilize Assad.
What’s the big deal? /S
“.....This weapon is a widely distributed portable antiaircraft system designed in the Soviet Union in the 1950s and 1960s and circulated through many countries and conflicts in the decades after, including via knockoff production outside of Russia. It is a common system, if rather dated, >>>>>that poses marginal threats to modern military aircraft with modern countermeasures, but is a potential menace to civilian aircraft<<<<<.....”
The big deal is that the U.S.did it by providing weapons to AQ, as facilitated by our dead ambassador to Libya - which may be the primary reason he never got help when attacked. Loose lips sink administrations.