FRONTLINE takes an in-depth look at the multibillion-dollar "persuasion industries" of advertising and public relations. To cut through mass-media clutter and to overcome consumers' grwoing resistance to their pitches, marketers have developed new ways of integrating their messages deeper in the fabric of our lives. Through sophisticated market research methods to better undertand consumers and by turning to the little-understood techniques of public relations to make sure their message comes from sources we trust, marketers are crafting messages that resonate with an increasingly cynical public.