Wael Ghonim
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Detained Google exec boosts Egypt protest

Cairo has seen the biggest protest so far against the rule of President Mubarak, as hundreds of thousands of people crowded Tahrir Square demanding far-reaching reforms.

Their campaign was boosted by the appearance of Wael Ghonim, a young Egyptian who works for Google.

He was snatched by security agents 12 days ago and released on Monday.

Jeremy Bowen reports.

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