Gives examples of government regulations.
Since governments almost always have an interest in controlling the free flow of information, official censorship is something that must be constantly guarded against. In our society, however, large corporations are a more common source of censorship than governments: Media outlets killing stories because they undermine corporate interests; advertisers using their financial clout to squelch negative reports; powerful businesses using the threat of expensive lawsuits to discourage legitimate investigations. The most frequent form of censorship is self-censorship: Journalists deciding not to pursue certain stories that they know will be unpopular with the boss.
