text: Australia PM Says Body of British Aid Worker Found  CANBERRA, Australia (Reuters) - A body found in the Iraqi  city of Falluja appears to be that of kidnapped British aid  worker Margaret Hassan, Australian Prime Minister John Howard  said on Thursday. "The body found in Falluja appears to have  been Margaret's and the video of the execution of a Western  woman appears on all the available information to have been  genuine," Howard told parliament Thursday.