The Study Group began meeting informally in 1989, organizing public meetings large and small in Los Alamos and Santa Fe to discuss nuclear policy and related issues. In 1992 we formalized ourselves as a staffed organization and began undertaking larger projects. We produced a large museum display at the Los Alamos museum, organized a statewide coalition of organizations and led a successful lawsuit that halted Los Alamos National Laboratory’s largest and most important weapons-related construction project for a year and half. We have provided technical consultation to other organizations in New Mexico, California, and Washington, DC. We subsequently won several lawsuits over information and civil rights, conducted numerous public campaigns, held hundreds of public meetings, generated more than 3,000 news articles, lobbied Congress, have been active in national coalitions and debates and halted or deterred at least two major nuclear weapons projects.