Steve Kroft interviews Gary Johnson and his running mate, Bill Weld, the Libertarian candidates taking on the two-party system with many ideas outside the political mainstream; The next president will become commander-in-chief at a time when a new Cold War is brewing and both the U.S. and Russia still keep enough nuclear weapons on alert to end civilization. David Martin reports; China's film industry has grown so big so fast, that it is now looking to compete with Hollywood. Holly Williams takes a look.
