Scientists are an argumentative bunch, and science is no stranger to controversy. Since the beginning of the scientific revolution, science has witnessed and engaged in great controversies, including heliocentrism, the theory of evolution, the N-ray affair, and most recently the debate over climate warming. Prior controversies were settled with additional scientific study, which provided convincing data for one faction or the other. Today scientists are engaged in a new type of controversy involving the benefits, debits, appropriateness, and wisdom of redacting experimental data from scientific manuscripts on the grounds that the information could be used for nefarious purposes. This controversy was triggered when a government advisory committee known as the National Science Advisory Board for Biosecurity (NSABB) examined two manuscripts describing genetic changes that enabled bird flu virus (H5N1) to become transmissible in mammals. The NSABB then advised the U.S. Department of Health and Human Services that …