Could Pakistan start building more bombs right away?
Probably not. The reactor seems to be still under construction and several years from completion. And to make bombs, Pakistan needs to chemically separate the plutonium from spent reactor fuel, which requires a special reprocessing facility. It is not known whether the country has such a facility, according to Pike. Many other countries have plutonium-reprocessing facilities, including Russia, China, India, Israel, North Korea, the United States, Britain and Japan.