WASHINGTON: The famous African explorer Dr David Livingstone might have been impressed, even if the agenda was suspect. Pakistan’s disgraced nuclear proliferator-hero Abdul Qadeer Khan traversed the breadth of Africa in his hey day as a nuclear salesman , going to as romantic a getaway as Casablanca in Morocco and as remote an outpost as Timbuktu in Mali. US officials might dearly like to get hold of Khan’s travel agent, or simply his itinerary, since he seems to have pretty much charted his own course during his profligate proliferating days. According to accounts now surfacing in the Pakistani media,...