Is the American Media Biased? What is Media Bias? How are we culturally, politically and socially influenced by the media?

Protect the integrity of the press, protecting sources, verifying information before publication, and using a variety of other techniques to convey a trustworthy appearance to the public, encouraging people to put their faith in the media.
Is the American Media Biased? What is Media Bias? How are we culturally, politically and socially influenced by the media? How are our beliefs, ideas and political consciousness impacted by what we view on the television, read on the internet and hear on satellite radio?

Who owns the media and is it designed only as a profit motive corporate entity thus real programming unbiased programming is an elusive abstract concept. How are American policy makers impacted by media outlets who can alter, destroy and create a media darling?