The Crown Mandela Refused, by Osmund Agbo    Rumors of a power struggle continue to swirl around Aso Rock, despite official denials. The sudden cancellation of the Independence Day parade, sweeping military retirements, and the reported raid on the Abuja residence of a former petroleum minister linked to ex-President Muhammadu Buhari have fueled speculation and unease. For many Nigerians, it feels reminiscent of the political tension that surrounded former President Olusegun Obasanjo’s controversial third-term bid a period when official reassurances did little to calm public suspicion. Once again, silence is mistaken for...