A senior al Quada leader, really a top field commander, was killed in North Waziristan (occasionally controlled by Pakistan), and, surprisingly, this was announced by a terrorist website. Was he killed by the U.S., or by Pakistanis? No one is taking credit, but at first it was thought to be by an American drone. And, of course, no one is commenting on the specifics.
Still, if it is true that al-Libi has been killed--he was responsible for the attack on Bagram sir base that killed over twenty people when Cheney visited in February 2007--it is probably a sign that the U.S. is much more active inside Pakistan than, say, we were three months ago. Perhaps that explains why the bad guys announced the hit.