Why CNN commentators feast on Palin as though she is a threat and a menace to American society? ?

CNN's Roland Martin's new show has been obviously designed to lambast and vilify the GOP ticket. I am fine with him hosting 2 opposing sides but God knows even the penguins at the Antarctic know that Martin is a die-hard Obamaniac. He would repeatedly scream in his program that Palin does'nt know anything. I think this is not good journalism. They are just using their power and scope in media to air their personal view and beliefs. Why would they hate Palin? Does Gloria Borger feel insecure? All of them feast and pick on her. This old Cafferty who has a very careless mouth and a persona-non-grata in China should repent from his sins.