Last week, a London court began pondering the vexed question of whether Diana, Princess of Wales was, ahem, murdered. There was so much public suspicion, declared the coroner, Lord Justice Scott Baker, that it was time for the rumors to be either "dispelled or substantiated." So who killed her? On the night of Diana's death, there were apparently two top agents for MI6, the British secret service, on the loose in Paris, and possibly a third, if you believe Henri Paul, the chauffeur, was also on the spooks' payroll. That's the theory of Mohammed Fayed, Messr. Paul's employer and father...