On the front page of the Los Angeles Times today is a story about the International Atomic Energy Agency's efforts to determine the scope of A. Q. Khan' s nuclear network. The investigation, according to the article, "has stalled in a clash of national interests that threatens a full accounting of [Khan's] secret partners and clients."
Khan, the father of Pakistan' s nuclear bomb, was arrested in December of last year for transferring nuclear technology to Libya. He was promptly pardoned by Pakistan's Pervez Musharraf. Since then, the Pakistani government has refused to allow IAEA inspectors to interview Khan in spite of the fact that he was responsible for "the world's worst case of nuclear proliferation," in the words of the LA Times article.