Inter Press Service: The World Food Security Summit in Rome this week opened up a dispute between what may be investment in farmland to some, but is seen as land grab by others. There has been widespread alarm at a recent acceleration in purchases of farmland in developing countries, above all Africa, primarily by investors from the Middle and Far East. The U.N.’s Food and Agriculture Organisation (FAO), the summit’s host, said it is estimated that up to 20 million hectares of African land have …