Pakistani intelligence agents hunted Wednesday for the graves of four al-Qaida militants believed killed in an airstrike near the Afghan border — including at least one suspected high-ranking al-Qaida figure. ABC News and The New York Times reported that Pakistani officials believe a master bomb maker and chemical weapons expert for al-Qaida was killed in the attack on the village of Damadola last week. He was identified as Midhat Mursi, also known as Abu Khabab al-Masri, who ran an al-Qaida training camp and has a $5 million reward on his head. Also killed, Pakistani officials believe, was Khalid Habib, the...