ISLAMABAD – Soldiers captured the strategically located hometown of Pakistan's Taliban chief Saturday after fierce fighting, officials said, the army's first major prize as it pushes deeper into a militant stronghold along the Afghan border. A suspected U.S. missile killed 22 people elsewhere in the northwest, but apparently missed a top Taliban figure, authorities said. Pakistan's eight-day-old offensive in the Taliban and al-Qaida stronghold of South Waziristan is considered its most critical test yet in the campaign to stop the spread of violent Islamist extremism in this nuclear-armed, U.S.-allied country. The army operation has prompted a wave of retaliatory attacks...