UGANDA'S main opposition party said its leader Bobi Wine had been detained at the airport as he returned from a trip abroad, but police said they had accompanied him to his residence. In recent years Robert Kyagulanyi, popularly known as Bobi Wine, has emerged as the strongest challenger to President Yoweri Museveni, 79, who has been in power in the East African country since 1986. Wine finished runner-up to Museveni in a 2021 election that he said was marred by fraud. Museveni's government has faced criticism from opponents and human rights activists for stifling the opposition, a charge Museveni denies.…