The increased use of corn-derived ethanol and other bio-fuels has been blamed for rising food prices worldwide. But defenders of these fuels say their impact on food prices is being exaggerated and that new fuels under development will largely bypass that problem in any case. VOA's Greg Flakus has more on the story from College Station, Texas. American corn, wheat and soybean fields feed much of the world and also provide the material from which alcohol fuels like ethanol are produced. Ethanol has benefited the U.S. heartland by giving farmers more stable prices for their grains and creating jobs at...