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Sen. John Thune, the Republican who ousted Senate Minority Leader Tom Daschle in 2004, says it's time for all gas pumps to offer E20 blends.

Those little stickers announcing that the fuel you're about to put into your tank contains up to 10 percent ethanol are getting pretty ubiquitous, aren't they? But pumps that can dispense E20 or E30 are less common, and they may never take off because the EPA is worried that the higher ethanol content in the fuel can damage cars that are not equipped to deal with the biofuel. Since these "blender pumps" operate the same way as standard gasoline pumps and customers might inadvertently put them in