KAMPALA, UGANDA — Michael Kawuba is sitting in his church office reflecting on tumescence. “We Ugandans get an erection when we see a beautiful woman,” he says. “Anything else is unnatural.”

During the day, Kawuba works as a financial advisor, but once he is finished, he rejoins the battle against homosexuality. A friendly man of 31, Kawuba is married and has three children — and he is not one to rant. But every second Sunday, he preaches to the Kakumba congregation. “The Bible forbade homosexuality. God rained down fire onto Sodom and Gomorrah” — he continues in this vein for hours at a time, standing behind a wooden pulpit. The sanctuary is spacious with a roof made of palm fronds. A band including guitar, bass and drums players pumps out gospel music while worshippers sing along, sway to the rhythm and stretch their arms heavenward as they call out “praise the Lord!”

On Feb. 24, God would seem to have finally heard their entreaties. That was the day that President Yoweri Museveni signed a law making “aggravated homosexuality” punishable with sentences of up to life in prison. A first draft of the law had even called for the death penalty. Michael Kawuba […]