The deliberate spread of information or ideas to influence a person, group, institution, or nation in support of—or in opposition to—a particular cause. Propaganda is often coded as "white," "grey," or "black." White referring to overt propaganda where the source of the content is clear, grey referring to propaganda with muddy or unclear origins, and black referring to propaganda that disguises its origins, often portraying itself as the target it is trying to discredit.