Pakistan wants a bigger role in Afghanistan:
Pakistan is presenting itself as the new viable partner for Afghanistan to President Hamid Karzai, who has soured on the Americans. Pakistani officials say they can deliver the network of Sirajuddin Haqqani, an ally of Al Qaeda who runs a major part of the insurgency in Afghanistan, into a power-sharing arrangement.
In addition, Afghan officials say, the Pakistanis are pushing various other proxies, with General Kayani personally offering to broker a deal with the Taliban leadership.
via Pakistan Is Said to Pursue an Afghan Foothold – NYTimes.com.
I say give it to them. It makes far more sense for them to be leading in the region than it does for us.