Forty years. That is how long Ugandan President Yoweri Museveni has been in power. The 81-year-old was sworn in on Tuesday to extend his presidency over a further five-year term that may well be his last – although not necessarily the last for the Museveni family. The president’s son and presumptive heir, army chief General Muhoozi Kainerugaba, oversaw days-long rehearsals of the military parade that will animate the eighth inauguration of Museveni, with Russian-made Sukhoi fighter jets flying...