Black Bloc Vows Violence as Egypt Revolution Sours

May 15 (Bloomberg) -- Political polarization in Egypt has spawned rival fighting factions such as the Black Bloc, a protest group which claims violence is the only option after the nation's peaceful 2011 revolution turned sour. Bloomberg's Salma El Wardany reports from Cairo. (Source: Bloomberg)
Aetna to Buy Humana for $37 Billion
00:35 - Bloomberg's Francine Lacqua and Manus Cranny report on today's "Top Headlines." They speak on Bloomberg Television's "The Pulse." (Source: Bloomberg)
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