Authored by Mike Maharrey via MoneyMetals.com, A growing number of African countries are turning to gold to hedge geopolitical risk and protect against currency losses. Nigeria, Uganda, Zimbabwe, Madagascar, and several other African nations have made moves to increase gold reserves, bring their gold home, and even back their currencies with the yellow metal. South Sudan is the latest country to turn to gold. Last weekend, the country’s central bank governor said he plans to expand the country’s gold reserves. “We are in…