OSAMA bin Laden has turned an obscure book by a radical Washington historian into one of the nation's best sellers by recommending it in his latest verbal attack on the United States. Since the Al-Qaeda leader mentioned "Rogue State: A Guide to the World's Only Superpower" in his tape last Thursday, William Blum's book has gone from 205,763 on the Amazon.com list of best sellers to number 27 on Saturday. As he fought off media attention, Mr Blum, 72, who lives in a one-room apartment in the US capital, told US media he had no regrets about the boost from...