The Pakistani information minister stated again on Thursday that his government had no knowledge of Dr Khan's activities.
| "We know nothing, nothing! Tell them, Hogan." |
| Guess that probe hit paydirt |
The US has called Dr Khan the "biggest proliferator" of nuclear technology.
He shocked Pakistan early last year when he went on television and confessed to leaking nuclear secrets. He said he took full responsibility for proliferating nuclear weapons to Iran, Libya and North Korea. Dr Khan had held the post of scientific adviser since retiring as head of the country's top nuclear facility in 2001 but was sacked after his confession. He has been held under virtual house arrest since his confession.
Although the government has passed on information about his former activities to the UN's International Atomic Energy Authority, it will not let any foreign officials interview him.