Global: Gates Foundation's agriculture aid a hard sell

The Bill & Melinda Gates Foundation is dramatically expanding its efforts to help the world's poorest farmers, with goals every bit as ambitious as its better-known global-health work fighting diseases such as AIDS and malaria. But the foundation's nascent agricultural program is encountering more resistance than much of its other work, with critics concerned that its market-oriented, technology-centric approach will open the door to big agribusiness interests and genetically engineered food.