All the presidents' pets: JFK's canine détente

President John F. Kennedy's family hosted a large number of pets, including dogs, a cat, hamsters and a pony. When Soviet Premier Nikita Khrushchev presented a gift to the Kennedys – a glamorous dog named Pushinka, whose parents were Soviet space dogs – it set tongues (and tails) wagging. Correspondent Mo Rocca reports.