Nuclear Nonproliferation: Progress Made in Improving Security at Russian Nuclear Sites, but the Long-Term Sustainability of U.S.-Funded Security Upgrades Is Uncertain

摘要

Safeguarding nuclear warheads and materials that can be used to make nuclear weapons is a primary national security concern of the United States. Since 1993, the Departments of Energy (DOE) and Defense (DOD) have worked to improve security at sites housing weapons--usable nuclear material and warheads in Russia and other countries. In 1995, DOE established the Materials Protection, Control, and Accounting (MPC&A) program to implement these efforts. GAO examined the (1) progress DOE has made in improving security at nuclear material sites in Russia and other countries, (2) progress DOE and DOD have made in improving security at Russian nuclear warhead sites, and (3) efforts DOE and DOD have undertaken to ensure the continued effective use of U.S.-funded security upgrades. To address these objectives, among other things, GAO analyzed agency documents, conducted interviews with key program officials, and visited four Russian nuclear sites.