Over 6,000 Syrians have volunteered to battle Islamic State militants, but fewer than 100 passed muster.
Gen Martin Dempsey, chairman of the Joint Chiefs of Staff, told a Pentagon news conference today that while the US needs to develop a credible, moderate fighting partner on the ground in Syria, the vetting must be done carefully to weed out extremists.
Dempsey suggested that more credible volunteers may come forward after the Muslim holy month of Ramadan is over in mid-July.