This week World Development Movement activists, dressed as representatives of some of the world's largest food and drink companies, delivered an Africa shaped thank-you cake to the Department for International Development (DfID). This tongue-in-cheek action highlights the support that DfID is giving to the New Alliance for Food Security and Nutrition, the stated aim of which is to lift 50 million people out of poverty and improve food security. "Sounds great", I hear you say....