This week on the Sunday Documentary Hour, another installment of BURN: An Energy Journal. Earlier in this series we've heard about nuclear power and the hunt for oil. Now, BURN's host Alex Chadwick examines how, in this election season, a single person, place, or policy can – with a boost from science – affect the nation’s search for greater energy independence. President Barack Obama and his opponent, Mitt Romney, share one broad policy goal – greater energy independence for the United States. But, they differ on how to achieve it.