Sudan's Reported Ethnic Cleansing Crisis

On Thursday, a U.S. House of Representatives committee opened hearings on what its chairman calls the "worst humanitarian catastrophe on the planet". The government of Sudan is said to be aiding Arab militias in an ethnic cleansing of the Darfur region of western Sudan. Thousands are reported dead, and more than a million have been displaced. NPR's Tony Cox speaks with a Sudanese man who testified before Congress, and a Human Rights Watch worker just back from the region.