Philip Dodd goes to Middle America to meet those battling for the heart of evangelical Christianity. He talks to those who believe "the Rapture", the Biblical prophecy that heralds the end of the world, is brought ever closer by the conflict in Iraq, and tracks attempts to influence foreign policy in the Middle East. He also talks to those who are seeking to reposition evangelicalism as a more earthbound religion that cares as much about environmentalism as abortion, homosexuality and Armageddon. Producer Kirsty Pope