What do City speculators, Gulf oil sheikhs, Chinese entrepreneurs, big-name financiers like George Soros and industry titans like Richard Branson buy when they go shopping? Land. Parcels the size of Wales are being snapped up across the plains of Africa, the paddy fields of Southeast Asia, the jungles of the Amazon and the prairies of Eastern Europe. Why? The money men will tell you that their investments will bring an end to world famine. But is this more about fat profits and food security for the few?