BAGHDAD, Iraq - A key al-Qaida in Iraq leader described as the group's "religious emir" was killed in a U.S. airstrike hours before two American soldiers went missing and in the same area, the military said Tuesday. Mansour Suleiman Mansour Khalifi al-Mashhadani, or Sheik Mansour, and two foreign fighters were killed as they tried to flee in a vehicle near the town of Youssifiyah, in the so-called Sunni "Triangle of Death." U.S. coalition forces had been tracking al-Mashhadani for some time, American military spokesman William Caldwell said in announcing his death. He said al-Mashhadani was an Iraqi, 35 to 37...