In Nigeria, a President's Illness Puts the Health of a Nation at Risk

After spending nearly two months recuperating in London, Nigeria's ailing leader has returned home to resume the responsibilities of office. But it is still unclear whether President Muhammadu Buhari is back for good. The president has warned the public that he may need to return to London in the weeks ahead to undergo more medical tests, raising serious questions about the state of his health -- and his ability to finish out his term....