Security officials are concerned over a tactic newly employed by al Qaeda. Sheila MacVicar reports suicide bombers are now storing explosives inside their bodies in order to avoid detection. Suicide bomber Abdullah Asieri, avoided detection by two sets of airport security and palace security by smuggling a pound of high explosives, plus a detonator in his rectum. Inside a Saudi palace, the scene was the bloody aftermath of an al Qaeda attack in August aimed at killing Prince Mohammed Bin Nayef, head of Saudi Arabia's counter terrorism operations. To get his bomb into this room, Abdullah Asieri, one of Saudi...