On January 25, 2011, the people of Egypt took to the streets in unprecedented numbers to protest the government of President Hosni Mubarak, who has kept the nation under a state of emergency for three decades. The riots have continued unabated into the month of February, and it's anybody's guess when the disorder will end.
The United States has endured its share of civil unrest as well. Some riots have been carefully planned in advance to protest government policies, and some have begun spontaneously in communities plagued by poverty and unemployment. But while riots start for many different reasons, they usually end the same way, with mass arrests, loss of life and damage to public and private property.