Biofueling the US elections

"Biofuels are commercially questionable, do not materially advance energy independence, and may not even help reduce greenhouse gas emissions. Naturally, Congress wants to mandate them. Why? Well, Iowa caucus voters win; Archer Daniels Midland wins; and special interest contributors to political campaigns win. Bioethanol is just a subsidy boondoggle masquerading as a solution to America's energy problems. But it does help get some politicians elected." (Thanks D.)