Simon Cox asks why people want to have some results wiped from Google searches and investigates the effect of the recent 'right to be forgotten' ruling at the European Court of Justice. He speaks to those who have tried to have links removed and those who think this is just a charter for criminals to hide their pasts. He travels to Madrid to see Google's first Advisory Panel meeting as they try to gain clarity on the ruling and what it means for Google now and in the future.

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