MOSCOW, Iowa – On a scorchingly hot day in the American Midwest, Tim Maxwell is voicing his fears about the future of farming.The 65-year-old has worked the fields since he was a teenager. He now ownsMOSCOW, Iowa – On a scorchingly hot day in the American Midwest, Tim Maxwell is voicing his fears about the future of farming.The 65-year-old has worked the fields since he was a teenager. He now owns