USA - Another famine is about to tighten its grip on Somalia. And it’s not the only crisis that aid agencies are scrambling to address. For the first time since anyone can remember, there is a very real possibility of four famines — in Somalia, South Sudan, Nigeria and Yemen — breaking out at once, endangering more than 20 million lives. One powerful lesson from the last famine in Somalia, just six years ago, was that famines were not simply about food. They are about something even more elemental: water. If there was any doubt, the recent news from Somalia or Nigeria should erase it.