This seems like a good idea, why didn’t we do this sooner?

Congressional negotiators have agreed on legislation that would tie U.S. aid to Pakistan to significant progress by Islamabad in cracking down on al Qaeda, the Taliban and other militants, congressional sources said on Thursday.
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The Pakistan aid provision is part of a massive bill implementing recommendations of the September 11 commission that was the result of compromise by House and Senate negotiators.
It bars assistance in the fiscal year beginning Oct 1 until President George W. Bush finds Pakistan is “making demonstrated, significant and sustained progress toward eliminating support or safe haven for terrorists,” according to a draft made available to Reuters.
Islamabad must show a commitment to eliminate from its territory “any organization such as Taliban, al Qaeda or any successor, engaged in military, insurgent or terrorist activities in Afghanistan,” the bill said.
And it must undertake a “comprehensive military, legal, economic and political campaign” to achieve that goal.