Watch: When a child hijacked Pope's stage

A speech-impaired boy won the heart of pilgrims in the Vatican on Wednesday when he climbed onto the stage to play around the Pope's chair as the Pontiff was speaking. The guards stood by and gamely let the young boy run around the Pope as his catechism lesson was being read out in the Vatican audience hall. 'The boy is from Argentina and he is undisciplined, the Pope joked later.