| Guinea-Bissau, one of the poorest nations in the world, has become a hub for cocaine trafficking as South American drug cartels seek new smuggling routes to Europe. With over 100 islands off its coast and a navy with no working | boats, Guinea-Bissau offers a haven for drop-offs, storage and movement of cocaine. Leading officials are involved, as was assassinated president Joćo Bernardo Vieira, according to Interpol. | |