Pakistan has dozens of laboratories and production and storage sites scattered across the country. After developing warheads with highly enriched uranium, it has more recently tried to do the same with more-powerful and compact plutonium.

U.S. surveillance of Pakistan extends far beyond its nuclear program. There are several references in the black budget to expanding U.S. scrutiny of chemical and biological laboratories.

Pakistan has accepted some security training from the CIA, but U.S. export restrictions and Pakistani suspicions have prevented the two countries from sharing the most sophisticated technology for safeguarding nuclear components.

Barton Gellman Quotes