Is the Taliban Retreating?

The Taliban says it will leave Pakistan's Swat Valley, which was once a major stronghold until the Pakistan Army upped its presence there this summer. The collapse in Swat came as the Taliban's leader there, Maulana Fazlullah, was reportedly arrested. The group's exit is a further sign of disarray among its Pakistan leadership since its top man, Baitullah Mehsud, was killed by an American drone attack last month. Since then, The Daily Telegraph reports, rivals have waged a bloody power struggle seeking to succeed Mehsud.