This article from the BBC mentions continuing tension between Kabul and Islamabad over alleged support for the Taliban-al-Qaeda by Pakistani intelligence. This dispute concerns the nationality of some Taliban fighters killed near Spin Boldak. I'm always a little skeptical when the nationality of these groups' members is cited as a somehow indicative of their nations' policy. The argument that the U.S. should crack down on Saudi Arabia because 15 of the hijackers were Saudis seems lazy to me, and I forget how many terrorists we've seen from places like Jordan and Kuwait that are clearly not supporters of terrorism. The argument also works the other way: There's always this undercurrent of people wanting to deny visas to citizens of countries that support terrorism. Most of these nations are dictatorships. Should we ship back all the Cuban refugees because that nation is on the sponsors-of-terror list?