contrary to an increasingly popular narrative, fighters in these vetted groups are not, with very few exceptions, handing over U.S. weapons to jihadis, nor are they wandering off to join the extremists themselves. The cornerstone of the CIA effort has been to supply rebel groups with U.S.-manufactured BGM-71 TOW anti-tank guided missiles, which have ensured that the moderate opposition has remained a relevant actor in the conflict. Thus far, according to publicly available information, at least 1,073 TOW missiles have been sent to Syria and used in combat, only 12 of which have changed hands and been used by nonvetted groups — amounting to an impressively low proliferation rate of 1.1 percent