RIYADH, Saudi Arabia -- Saudi Arabia's highest religious authority has issued an edict barring the use of cell phones with built-in cameras, blaming them for "spreading obscenity" -- a final resort after a ban on their sale and import to the kingdom failed to dent their popularity. Camera cell phones have caught on fast throughout Asia, Europe and the Middle East, particularly in oil-rich Persian Gulf countries, prompting concerns about privacy in places where people undress, "theft" of reading materials at book stores and newsstands, and corporate espionage by employees. As a result, the devices have been banned by gyms,...