U.S. military officials are withholding the names of the ISIS terrorists allegedly killed by an airstrike in Afghanistan that was carried out in retaliation for the suicide bombing attack that left at least 13 U.S. troops dead. Pentagon spokesman John Kirby twice on Friday declined to provide the identities of the terrorists said to be killed in the strike. “I don’t believe we’ve refused to say who they are. We haven’t given you any names,” Kirby told reporters in Washington, responding to a question about the terrorist names. “We know who they are. I think at the time, we didn’t release the names because we were in the middle of a very fluid threat environment,” he added later. “Let me see if that’s information that can be provided now. I don’t know. I mean, we know who they are. I don’t know if it’s information that we’re going to be …