Weegy: three roles of media... gatekeeper: influences what subjects became national political issues and for how long scorekeeper: tracks political reputations and cadidates watchdog: investigates personalities and expose scandals. [ [ resposibilities of media 1) media ought to work for the formation of public opinion. 2) media should throw light on issues. 3) media has to do something for the solution of issues by presenting the opinion of experts. ] ] (More)