WASHINGTON: Under tremendous pressure from the United States, Islamabad’s ruling dispensation appears to be zeroing in on Pakistan’s national hero, Dr Abdul Qadeer Khan, as the source of nuclear proliferation. Several people, perhaps up to 25, included some of Khan’s closest aides, have been detained in recent days. Some of them have been dragged out of their homes kicking and screaming, according to family members who have spoken to the Pakistani media. Khan himself has been treated more circumspectly, but he has also been questioned exhaustively and further steps against him seem imminent. The military government already seems to be...