What can the world do to prevent genocide?

Darfur refugees
Sudanese women are seen selling tobacco at the Tawila market. The city, located 70 km west of Al-Fasher, is known as the "Fallujah of Darfur" because of violence.
Photo by RAMZI HAIDAR/AFP/Getty Images

An America Abroad documentary, "The Responsibility to Protect," considers whether, and how, the international community should intervene to prevent genocide.