In other articles they mention the recent capture by Pakistan of a high level Al Qaeda operative.
It's a good thing the Pakistanis captured him, if we had, we would be giving him a lawyer, and would not allow to interrogate him, other than ask him nicely, if he cared to share any info with us, and you know how much info we would get.
More on the South Africans caught in Pakistan, along with the Tanzanian bomber. Probably comrades of the South African woman captured in Texas. This might be the car/truck bombing leadership.
http://www.iol.co.za/index.php?set_id=1&click_id=15&art_id=vn20040730015349510C919403
One reason for that is that Pakistan is infested with terrorists and Poland, for example, isn't. But the war would be infinitely harder to win without the active cooperation of that country.