http://www.fas.org/sgp/crs/nuke/R43037.pdf
Describes how nuclear arms reductions with Russia might proceed more successfully if each nation reduced stockpiles unilaterally rather than engaging in the complicated formal treaty process. From the Congressional Research Service, posted by the Federation of American Scientists
http://www.fas.org/sgp/crs/nuke/RL34256.pdf
Summarizes what is known from open sources about the North Korean nuclear weapons program—including uranium enrichment facilities and delivery systems—and assesses current developments in achieving denuclearization. From the Congressional Research Service, posted by the Federation of American Scientists
http://www.fas.org/sgp/crs/nuke/RL33865.pdf
Discusses the recent history of arms control and nonproliferation negotiations, the rising and waning interest in various administrations, and the arguments for and against devoting serious efforts to such negotiations. Includes a list of arms control treaties, a discussion of the U.S. treaty ratification process, and a list of arms control organizations. From the Congressional Research Service, posted by the Federation of American Scientists
http://www.fas.org/sgp/crs/nuke/R40439.pdf
Describes which agency in each of the nine nuclear club nations is responsible for research and development of nuclear weapons, whether these agencies are military or civilian, and the evolution of this agency in the U.S. from 1942 to date. From the Congressional Research Service, posted by the Federation of American Scientists
http://www.gao.gov/assets/660/652314.pdf
Describes recent additions to U.S. sanctions directed against Iran, U.S. efforts to enforce the financial sanctions, and the effect that U.S. and international sanctions have had on Iran’s economy. From the Government Accountability Office
http://www.fas.org/sgp/crs/nuke/RL34248.pdf
Discusses the size of Pakistan’s nuclear arsenal and the problems related to security and proliferation.
From the Congressional Research Service, posted by the Federation of American Scientists
http://www.fas.org/sgp/crs/nuke/RL34256.pdf
This report summarizes what is known from open sources about the North Korean nuclear weapons program, including weapons-usable fissile material and warhead estimates, and assesses current developments in achieving denuclearization. From the Congressional Research Service, posted by the Federation of American Scientists
http://www.fas.org/sgp/crs/nuke/RL33548.pdf
Discusses the background of efforts to reduce or ban all nuclear testing, the effect of recent North Korean nuclear tests, and pros and cons of passage of the CTBT. From the Congressional Research Service, posted by the Federation of American Scientists