NPR: US Envoy: Time for intervention in Central African Republic

The latest crisis started in March, when Muslim rebels, known as Seleka, toppled the government and rampaged through villages, burning churches and homes. Christian militias have since committed atrocities against Muslim communities. And the U.N. estimates that the conflict has affected half the population.

Leading aid organization Doctors Without Borders, also known by the French initialism of its name, MSF, blasted the United Nations recently for failing to respond quickly enough. Sylvain Groulx, who runs the MSF office in Bangui, the capital, says the U.N. has been too timid.

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