Nizar Khazraji, a prominent Iraqi general who defected to the West, was assassinated Monday on his way to attend a U.S.-called meeting of opposition groups in the southern city of Nassiriya. Khazraji was sometimes mentioned as a possible successor to Saddam Hussein. In February last year, London-based Arabic daily Al-Hayat quoted opposition sources in Syria as saying the US had chosen Khazraji to run Iraq after the overthrow of Saddam. The CIA was reported to have helped him escape to Kuwait from house arrest in Denmark, where prosecutors were investigating his alleged role in gas attacks on the Iraqi Kurds....