Mike Gifford via Flickr/Creative Commons
Charles Seife takes an in-depth look at the U.S. Food and Drug Administration's use of "close-hold embargoes" to manipulate news coverage: "The agency has made it a practice to demand total control over whom reporters can and can't talk to until after the news has broken, deaf to protests by journalistic associations and media ethicists and in violation of its own written policies." Commentary and more background from Ivan Oransky.