ISI Director Lt. Gen. Mahmood Ahmed meets with top Taliban leader Mullah Omar on September 17-18, 2001, and again on September 28. He is supposed to encourage the Taliban to extradite Osama bin Laden or face immediate US attack, but in fact he encourages the Taliban to fight and resist the upcoming US invasion (see Mid-September-October 7, 2001). He is also in regular communication with Omar and other Taliban leaders, and gives them advice on how to resist the US invasion (see Mid-September-October 7, 2001). The CIA quickly learns of Mahmood’s double dealing, and informs Pakistani President Pervez Musharraf. Musharraf replaces Mahmood on October 7 (see October 7, 2001). But despite the ISI’s obvious double dealing, the CIA continues to heavily rely on the ISI for its intelligence about the Taliban (see November 3, 2001). [Rashid, 2008, pp. 77]