KAMPALA, Uganda (AP) — Forty years. That’s how long Ugandan President Yoweri Museveni has been in power. The 81-year-old will be sworn in 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 Gen. Muhoozi Kainerugaba, oversaw dayslong rehearsals of the military parade that will animate the eighth inauguration of Museveni, with Russian-made Sukhoi