Edited sentence: Both illegal aliens and foreigners were constructed as physical threats to the public and never featured in the role of victim or hero.On May 2nd 2007, researchers from the Indiana University Media Relations Department published the findings of a study that analysed the style used by O'Reilly using analysis techniques first developed in the 1930s by the Institute for Propaganda Analysis.The report concluded that "Our results show a consistent pattern of O'Reilly casting non-Americans in a negative light