Media filter refers to the screening, editing or censorship process exercised by a particular news outlet or platform. Alternative words that are commonly used to describe a media filter include gatekeeper, editor, censor, and selector. A gatekeeper typically determines the flow of information that reaches the public, while an editor examines and revises the content that is published. A censor is responsible for suppressing or eliminating content that could be considered inappropriate or offensive, while a selector picks and chooses which stories to report. Other related terms include agenda setter, spin doctor, and propagandist, which describe individuals or organizations that shape public opinion through deliberate manipulation of the media.