A London accountant has described how Pakistan's disgraced nuclear hero Dr Abdul Qadeer Khan visited the West African state of Mali on three occasions between 1998 and 2000. Abdul Ma'bood Siddiqui accompanied A.Q. Khan on three mystery trips between 1998 and 2000. Their final destination was Timbuktu, a remote outpost in the desert that has always been a magnet for explorers and adventurers from around the world. The mystery behind the visits has deepened following recent revelations that Khan is also the owner of a small hotel in the town that he has named after Hendrina, his Dutch-born wife and...