One of the highest-placed leaders of al-Qaeda in Iraq, the man responsible for kidnapping and killing American soldiers, has been killed by American-led forces. Abu Usama al-Tunisi had become the "emir" of Yusufiyah and led foreign terrorists in their campaign against US and Iraqi forces: U.S.-led forces have killed one of the most important leaders of Al Qaeda in Iraq, a Tunisian believed connected to the kidnapping and killings last summer of American soldiers, a top commander said Friday. Brig. Gen. Joseph Anderson said the death of the terrorist in a U.S. airstrike Tuesday south of Baghdad, and recent similar...