Nigeria’s President Buhari on Sunday denied claims that he had died and been replaced by a Sudanese impostor, breaking his silence on a rumor that has circulated on social media for months. Buhari, who is running for re-election in February, spent five months in Britain last year being treated for an undisclosed illness. One theory widely aired on social media - and by some political opponents - was that he had been replaced by a lookalike from Sudan called Jubril. SNIP “A lot of people hoped that I died during my ill health,” he said, adding that those who spread...