EMBARGOES:
Too Hot to Hold: Life on Mars and Cloned Sheep Couldn't Be Kept Under Wraps
Eliot Marshall
Science embargoes--designed to keep research papers under wraps until they are released by a publisher--tend to break down if the news is really big. When word of a discovery leaks, reporters declare an "embargo break" and demand that the information be released early. Generally, but not always, the publisher gives in.