An Arab-American college student was convicted Tuesday of joining al Qaeda and plotting to assassinate President Bush. The federal jury rejected Ahmed Omar Abu Ali's claim that Saudi authorities whipped and tortured him to extract a false confession. Abu Ali, a 24-year-old U.S. citizen born to a Jordanian father and raised in Falls Church, Virginia, could get life in prison on charges that include conspiracy to assassinate the president and providing support to al Qaeda. Sentencing was scheduled for February. Abu Ali confessed shortly after his June 2003 arrest at a university in Medina, Saudi Arabia, that he joined al...