Should we be concerned about China?

  This picture taken on September 26, 2012 shows workers on a scaffold at a construction site in Hefei, central China's Anhui province. China has approved a massive infrastructure package worth more than 158 billion USD, state media said on September 7, as the government seeks to boost the flagging economy.

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    Should we be concerned about China?

Richard Quest speaks with global economist Bronwyn Curtis about how China's slowing growth could effect the world.