In Egypt, Revolution Still 'in Progress' as Protesters...

Aired: 4/11/2011 | 0:08:05 | Clip
Egypt's prime minister apologized and promised an investigation after troops stormed protesters in Tahrir Square, killing two and hurting dozens. Margaret Warner examines the latest unrest with Nabil Fahmy, former Egyptian ambassador to the U.S., and former National Security Council and State Department official Michelle Dunne.

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