taking responsibility. this bombing and series of bombing may have been orb straited by the taliban as a strawman to try and humiliate the united states. if the taliban were to attack, it would respond. but if another organization, a proxy working on behalf of the taliban is responsible for these attacks, what is happening there? >> reporter: it is highly speculative. and yes, in this type of situation and isis-k are allies. the taliban knows if this attack were linked to them, the us would take action and they are