10 Brand X Brand X (Los Angeles Times) July 30, 2010 Friday 11:12 AM EST LENGTH: 658 words HEADLINE: Brand X Files: Kara DioGuardi out at 'Idol.' Montana Fishburne porn tape reported. Brazil's sex tourism boom BYLINE: LATimes BODY: Jul. 30, 2010 (Los Angeles Times delivered by Newstex) -- The Justice Departm