A US lawmaker who introduced a legislation in the US Congress last week to pressure Pakistan to allow US officials access to its rogue scientist A Q Khan, asserted that his black nuclear market has not been closed down yet completely. Appearing on the MSNBC channel Congresswoman, Jane Harman, said the A Q Khan network has not been totally closed down. Harman is the Chairwoman of House Homeland Security Intelligence, Information Sharing and Terrorism Risk Assessment Subcommittee. She had introduced a legislation to put conditions on aid to Pakistan, if it didn’t give the US access to Khan.