As an aid to Congress in understanding nuclear weapons, nuclear proliferation, and arms control matters, this report describes which agency is responsible for research and development (R&D) of nuclear weapons (i.e., nuclear explosive devices, as distinct from the bombers and missiles that deliver them) in the nine nations with nuclear weapons and whether these agencies are civilian or military. It also traces the history of such agencies in the United States from 1942 to the present.

This report discusses Pakistan's capital crisis. In the autumn of 2008, Pakistan was in urgent need of an estimated $4 billion in capital to avoid defaulting on its sovereign debt. The elected government of President Asif Ali Zardari and Prime Minister Yousaf Raza Gillani sought short-term financial assistance from a number of sources, including the International Monetary Fund (IMF), China, and an informal group of nations (including the United States) known as the "Friends of Pakistan."