OSAMA bin Laden, the al-Qaeda leader, was obsessed with the singer Whitney Houston and wanted to marry her, a new book claims. Kola Boof, a Sudanese poet and novelist, who says she was kept against her will as the terrorism mastermind's mistress in 1996, writes in her autobiography that he wanted to give the star a mansion and make her one of his wives. "He told me that Whitney Houston was the most beautiful woman he'd ever seen," Boof claims in Diary of a Lost Girl, excerpts of which are published in Harper's magazine. But bin Laden had less respect...