Biofuels to clean up Chernobyl??

That's what they claim, but I don't really understand how the science works... maybe the radioactive heavy elements get absorbed into the organic material, but they don't go away, do they? And is it any better to have them in someone's gas tank?

In other biofuels news, Vale invests in biodiesel from palm oil in the northern Brazilian state of Pará (environmentalists unlikely to approve), Verenium and BP apply for a DOE loan to build a cellulosic ethanol plant, and the old Imperium Renewables biodiesel plant in Seattle gets retooled for local waste oils (sound good, huh?).