Most purveyors of news value impartiality, neutrality, and objectivity, despite the inherent difficulty of reporting without political bias.Afdah Perception of these values has changed greatly over time as sensationalized Afdah 'tabloid journalism' has risen in popularity. Michael Schudson has argued that before the era of World War and the concomitant rise of propaganda, journalists were not aware of the concept of bias in reporting, let alone actively correcting for it.