A US federal appeals court has rejected the plea by a Saudi national who\'s serving life in prison for trying to make a bomb. 23-year-old Khalid Ali Aldawsari, a former Texas college student, was convicted nearly two years ago of attempting to use a weapon of mass destruction. Prosecutors said he had collected bomb-making materials in his Lubbock apartment and researched possible targets -- including former President George W. Bush\'s Dallas home. In the appeal to the New Orleans-based court, Aldawsari\'s lawyers contended that the trial judge improperly allowed evidence and gave invalid jury instructions. Show Less >>