I have a new article at MercatorNet on embargoes on scientific reporting and how they can go wrong. When journalists report on breaking science news, they actually receive the journal article information and press release a week before the research is published in a journal. This, in theory, allows journalists to digest the research and get comments from all sides of the story. However, embargoes can be mis-used by  journals or organizations, like the FDA, to control how science is reported.