Last updated: 30 april, 2010 - 11:53 GMT
Madeleine McCann parents say some don't want their daughter found
This poster shows Madeleine at the age of three and how she might look aged six
Madeleine McCann went missing from her family's holiday apartment in the town of Praia de Luz in Portugal nearly 3 years ago.
She was days away from her fourth birthday.
Her parents, Kate and Gerry McCann, tell the BBC's Mike Williams why they still believe their daughter is alive.
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First broadcast 30 April 2010
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