Tahrir Square, Cairo
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Egypt marks protest anniversary in Tahrir Square

Thousands of Egyptians have returned to Tahrir Square in Cairo, a year after the start of protests which overthrew President Hosni Mubarak.

Print and broadcast media in Egypt and the Middle East have adopted a celebratory tone on the first anniversary of the uprising, but many have also cautioned that the "revolution" is unfinished.

Jon Leyne reports.