Pakistan not doing enough on terrorism, U.S. saysSat May 6, 2006 7:08 PM ISTBy Yousuf AzimyKABUL (Reuters) - Pakistan is not doing enough to help root out Taliban and al Qaeda leaders who have found safe haven in its lawless tribal lands along the Afghan border, a senior U.S. security official said on Saturday.Most al Qaeda and Taliban leaders are in Pakistan, and while the United States did not know where Osama bin Laden was hiding, he was probably on the Pakistan side of the border, said Henry Crumpton, State Department coordinator for counterterrorism.Pakistan, a vital U.S. security ally, has...