Taliban leader Mullah Mohammad “Omar wrote the Pakistani leader [Pervez Musharraf] a private letter on January 16, 2001, urging him to ‘enforce Islamic law…step by step’ in order to appease Pakistan’s religious parties. Otherwise, there could be ‘instability’ in the country. ‘This is our advice and message based on Islamic ideology,’ Omar warned. ‘Otherwise you had better know how to deal with it.’ ”
– Steve Coll, Ghost Wars, Page 553