Broadcast news isn't leftest or rightest.  It's capitalist.
The industry has changed since I worked in TV back in the 80's.  It's 100% 
about profit nowadays whereas before there may have been some very small 
percentage about journalism and public service.
Here's another take on the CBS whitewash report:
       http://www.forbes.com/work/2005/01/12/cx_da_0112topnews.html
  -RP