DAKAR, Senegal (AP) - A series of witnesses place six top al-Qaida fugitives in Africa buying up diamonds in the run-up to the Sept. 11 attacks, according to a confidential report by UN-backed prosecutors obtained by The Associated Press. The first-person accounts detailed by the prosecutors add to long-standing claims that al-Qaida laundered millions of dollars in terror funds through African diamonds before launching its deadliest offensive. Al-Qaida figures, including some already wanted in pre-Sept. 11 attacks on U.S. targets, dealt directly with then-president Charles Taylor and other leaders and warlords in the West African country of Liberia from 1999...