As the world population grows, so too does the number of people leaving their homeland in search of a better life.
Since the days of the Mayflower the US has been the desired destination of most immigrants.
But in the aftermath of the economic downturn, sentiment against immigrants has hardened and children are the hardest hit.
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Senior correspondent Brian Thomson talks to renowned US demographer Professor Marcelo Suarez-Orozco about the plight of children of America's 11 million illegal immigrants.
Watch this interview on YouTube:

