International investigators say they found on computers in several
nations plans for a relatively compact nuclear weapon that belonged to
the nuclear smuggling network run by disgraced Pakistani scientist
Abdul Qadeer Khan.
The investigators say it is not clear if those plans were sold to the smuggling ring's customers, which included Iran, North Korea and Libya.
They say the plans resemble a nuclear weapon built and tested by Pakistan 10 years ago. Such a weapon could be small and light enough to be carried by ballistic missiles like those owned by Iran and North Korea. The information also could cut the time needed to develop a practical weapon.
Pakistan's government has refused to allow investigators to question Khan, who is under house arrest, because he is regarded as a national hero for developing the country's nuclear program.