http://www.nytimes.com/2007/01/21/world/asia/21quetta.html
some lines from those
Western diplomats in both countries and Pakistani opposition figures say that Pakistani intelligence agencies — in particular the powerful Inter-Services Intelligence and Military Intelligence — have been supporting a Taliban restoration, motivated not only by Islamic fervor but also by a longstanding view that the jihadist movement allows them to assert greater influence on Pakistan's vulnerable western flank.
Three families whose sons had died as suicide bombers in Afghanistan said they were afraid to talk about the deaths because of pressure from Pakistani intelligence agents. Local people say dozens of families have lost sons in Afghanistan as suicide bombers and fighters.
Pakistan has long seen jihadi movements like the Taliban as a counter to Indian and Russian influence next door in Afghanistan, the Western diplomat and other analysts said, and as a way to provide Pakistan with "strategic depth," or a friendly buffer on its western border.
Hamid Gul, the former director general of Pakistani intelligence, remains a public and unapologetic supporter of the Taliban, visiting madrasas and speaking in support of jihad at graduation ceremonies.
"All Taliban are I.S.I. Taliban," he added. "It is not possible to go to Afghanistan without the help of the I.S.I. Everyone says this."