The Author Who Got A Big Boost From bin Laden Historian 'Glad' of Mention As Sales of Book Skyrocket By David Montgomery Washington Post Staff Writer Saturday, January 21, 2006; Page C01 Twenty-four hours after Osama bin Laden told the world that the American people should read the work of a little-known Washington historian, William Blum was still adjusting. Blum, who at 72 is accustomed to laboring in relative left-wing obscurity, checked his emotions and pronounced himself shocked and, well, pleased. "This is almost as good as being an Oprah book," he said yesterday between telephone calls from the world...