Support WBURWho's Afraid Of Ethanol? The 2012 Race Will TellPlay03:44Download AudioDon GonyeaMay 29, 2011 ShareCorn is big business in Iowa, which has usually made anything but support for ethanol subsidies off-limits for presidential hopefuls. (AP)
Corn is big business in Iowa, which has usually made anything but support for ethanol subsidies off-limits for presidential hopefuls. (AP)