Do the emerging biofuel technologies offer a way around the food-versus-fuel dilemma?

In the struggle to eliminate the possibility of creating a food supply crisis by producing an alternative fuel source from biofuels, scientists and biologists are seeking other sources, so-called ‘second- and third-generation’ biofuels.The development of first-generation biofuels from food sources, such as maize and sunflower oil, was initially hailed as a lower-carbon, renewable fuel source but not long afterwards caused something of a worldwide backlash as the food- versus-fuel debate emerged.
http://bioenergy.checkbiotech.org/news/do_emerging_biofuel_technologies_offer_way_around_food_versus_fuel_dilemma