Robert Mugabe is the eldest statesman on a continent where age is seldom a barrier to power Let them eat cake. That is one of the likely headlines after an all-night birthday gala for , the autocratic president of , which was due to finish in the early hours of yesterday. Mugabe, who last week turned 86 in a country where average life expectancy stands at 45, is the eldest statesman on a continent where age is seldom a barrier to power. But events confronting both Nigerians and Nigeriens in the past week have demonstrated that the next...