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According to a recent survey by the ̽»¨¾«Ñ¡ and SocialSphere, Inc. very few Americans are aware of the near famine affecting 20 million people in Africa and the Middle East. But once they are informed, it immediately rises to a top global concern. In this video ̽»¨¾«Ñ¡ president David Miliband visits refugee settlements in South Sudan and Uganda to hear the stories of people impacted by this crisis.

ABC News reports on the situation in war-torn Yemen and interviews an ̽»¨¾«Ñ¡ aid worker on the ground. Watch parts 1 and 2 of its coverage of the crisis and the ̽»¨¾«Ñ¡'s work on Nightline.

"Nightline" reports from war-torn Yemen, where three years of conflict have left nearly three million people homeless and 22 million in need of humanitarian aid. The story shows ̽»¨¾«Ñ¡ teams reaching remote villages to provide lifesaving aid. Watch part 2 of the report.