They are brainwashed in a systemitic manner
See

http://www.salon.com/books/feature/2...ise/index.html

extract
Thirty years ago, conservatives embarked on a plan to subvert journalism
and skew America to the right. They succeeded beyond their wildest dreams.

http://www.salon.com/books/feature/2...ght/index.html

Busting big fat liars
David Brock talks about why the media seems embarrassed to report on Bush's
failures, why TV pundit shows are stacked to the right -- and his new media
watchdog group.