The rapid expansion of relief efforts since the end of the Cold War has produced a surprising result: a series of difficult moral questions about the humanitarian enterprise.
In January, as I sipped a cool Nile Special in far northern Uganda, I watched a group of U.S. Army soldiers file into the open-air bar where I sat. They were not in uniform, but their bearing and speech gave them away.
We were in a poor, dusty town named Gulu, eight hours by bus from the capital, Kampala. Night was falling, and as the soldiers ordered local beers, I wondered where they came from. Then I did a simple calculation. By helicopter, these troops could reach Garamba National Park in neighboring Democratic Republic of the Congo...