Anti-government demonstrators celebrated in Tahrir Square upon hearing the news of the resignation of Egyptian President Hosni Mubarak on Feb. 11, 2011. John Moore/Getty Images hide caption

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An Egyptian protester prepares to hurl a tear gas canister back at security forces as others run for cover earlier today in Cairo's Tahrir Square. Mohammed Hossam /AFP/Getty Images hide caption

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Secretary of State Hillary Clinton (in red) shook hands with a child as she visited Cairo's Tahrir Square earlier today (March 16, 2011). Paul J. Richards /AFP/Getty Images hide caption

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Egyptian anti-government demonstrators held a huge national flag as they gathered in Cairo's Tahrir Square on Wednesday (Feb. 9, 2011). Mohammed Abed/AFP/Getty Images hide caption

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Reporters say many parents brought their children with them today to the demonstration in Cairo's Tahrir Square. Mohammed Abed/AFP/Getty Images hide caption

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