Boris Johnson, a former journalist, gives police the item, which had belonged to Iraqi official Tarik Aziz. Johnson blames political opponents for launching an "idiotic" probe. LONDON -- In the smoke-filled rooms of backroom politics here, it was only natural that a cigar case with a storied past would become convenient fodder for scandal. After months of smoldering controversy, London Mayor Boris Johnson appeared to put the matter to rest this week by handing over to Scotland Yard the item in question: a leather cigar case belonging to Iraq's former deputy prime minister, Tarik Aziz, scavenged by the mayor himself...