Lawyers for the Natural Resources Defense Council, Nuclear Watch New Mexico, Savannah River Site Watch and Tri-Valley Communities Against a Radioactive Environment sent a second letter to Department of Energy (DOE) Secretary Rick Perry and Lisa Gordon-Hagerty, the head of the semi-autonomous National Nuclear Security Administration (NNSA). The letter demands a nation-wide programmatic environmental impact statement (PEIS) for the agencies’ proposed expanded production of plutonium pits, the fissile cores or “triggers” of nuclear weapons.