ACCRA, Ghana (AP) -- Liberia's rebels and government picked a Monrovia businessman to lead the country's post-war transition government, and international mediators closed peace talks after 78 tumultuous days. The chief mediator, retired Gen. Abdulsalami Abubakar, officially announced selection of Gyude Bryant to head the two-year power-sharing accord, and sent warring parties home to implement it. "The first step of unifying the people starts from today,'' Abubakar said. "Do not let your people down.'' Selection of the transitional government's leaders follows Monday's signing of a peace accord, made possible by warlord-president Charles Taylor's Aug. 11 resignation and flight into...