There seems to be general agreement that there is only a tiny number of AQ people in Afghanistan (maybe one hundred). This, I feel, indicates that there is not a great love/affiliation. The Taliban is really an amalgam of militants, adventurers, militia members under various strongmen, et al., who are not necessarily tied to the AQ. The Taliban realize that, should AQ be allowed to become operational in Afghanistan and it succeeds in a big attack on the USA, we will again move in and destroy both organizations. Why would the Taliban want this?