The auto industry and the cars Americans drive could be radically altered by Obama Administration efforts to increase vehicle mileage standards. To get an 89-billion dollar taxpayer bailout, car-makers went along. Mileage standards of 34.1 miles per gallon by 2016 were part of the deal. Now, during weeks of closed-door negotiations, the Obama Administration has been pushing an average of 56.2 miles per gallon by 2025 but, this time, the industry is pushing back, claiming that smaller, lighter, more efficient cars might not sell. We hear what's at stake.