Obviously Pakistan will need to play a very essential role if we are to achieve any sort of peace in southern Afghanistan. Barnett Reuben, who is an imminent specialist in Afghanistan, who has been there several times--and it's not in the media--said that in order for Pakistan to control, or at least to help Pakistan to control in the long term, you have to talk about democracy. Right now you have a military dictatorship, which in itself has limits as to what it can do on the ground with its internal stability and necessities.
Pakistan is a very prickly issue. You poke it on one side and another problem comes up, all throughout. I think the Canadian government should pay very close attention to what's happening in Pakistan and try to better understand the internal dynamics of Pakistan, but at the same time, keep the pressure on to deliver results in Afghanistan.
Pakistan's role is not solely negative either, because lots of commerce in Kandahar, legitimate commerce, is with Pakistan, and they share also an ethnic Pashtun identity.
So it's a prickly issue, but definitely one to pay close attention to.