Self-Restraint by Scientists Can Avert Federal Intrusion

By DANIEL S. GREENBERG

Scientists should take note of two new entries in the government's lexicon of information control: "sensitive homeland security information" and "sensitive but unclassified." Those categories, now under consideration by the Bush administration, hold the potential to disrupt scientific and scholarly research and publication, and to impede public access to normally available governmental data, including studies critical of the government.

Curiously little concern has been aroused by the