NEW YORK (AP) - Martha Stewart says in a new interview that her nickname in prison was M. Diddy, that house arrest is "hideous" and that her prosecution was about bringing her down "to scare other people." In the interview, Stewart tells Vanity Fair magazine she agrees with those who say her crime - lying about a personal stock sale - is far different from massive corporate scandals such as Enron, WorldCom and Tyco. "Of course that is what it's all about," Vanity Fair quotes Stewart as saying. "Bring 'em down a notch, to scare other people. If Martha can...