Should the occupation forces in Afghanistan invade Pakistan (in hot pursuit) ?

A little, if necessary, but please be careful lads : even the Paki govt does not control all those wild border tribes, who are often kin to the Afghanis over the border. The British discovered 100 years ago that negotiation is the only way to keep them in line. DON'T blame the Paki govt for what happens up there. They are doing their best AND are VITAL allies. Let the Brits handle the situation, not the Yanks. Please!