PESHAWAR, PAKISTAN — A strike by a U.S. Predator drone in Pakistan's tribal areas in January missed al-Qaida's second in command, Ayman al-Zawahiri, by just two hours, an intelligence official here says, revealing that the hunt for al-Qaida's leaders had come much closer to killing him than was previously thought. Al-Zawahiri left a dinner in the village of Damadola at 10:30 on the night of Jan. 12, with a local supporter, Maulavi Liaqat, an intelligence official with knowledge of the incident said. The house where they had eaten was hit at 12:30 that night. At the time, amid an angry...