means by which we find any american who wishes to get out of afghanistan, we will find them, and we will get them out. >> reporter: the taliban say they will seek justice for the attack as coordination between u.s. forces and the taliban continues. u.s. commanders on the ground have asked the taliban to push out the security corridor around the airfield and shared some information to prevent attacks. >> we believe it's possible that others have been thwarted. we cut down the information we give the taliban. they don't get the full range of information that we have, but we give them enough to act in time and space to try to prevent these attacks. >> reporter: biden vowed that the u.s. military would attack isis-k in the wake of these bombings, but it's a far more difficult challenge. first, the assets are certainly there, whether it's attacking from overhead with fighter jets or gunships or carrying out a drone attack, the difficult problem is in terms of intelligence. without u.s. troops on the ground to gather intelligence about isis-k, it becomes increasingly difficult to know where and whom to target as the