WASHINGTON (AP) — No more than five U.S.-trained Syrian rebels are fighting the Islamic State, astoundingly short of the envisioned 5,000, the top U.S. commander in the Middle East told angry lawmakers on Wednesday. They branded the training program “a total failure.” After the first 54 fighters were sent in to fight in July, a Syrian affiliate of al-Qaida attacked the group, killing several and taking others hostage while many fled. Asked how many remain, Gen.