Nothing But Nets is a grassroots campaign to save lives by preventing malaria, a leading killer of children in Africa. While the UN Foundation has been working with the UN to fight malaria for years, it was a column that Rick Reilly wrote about malaria in Sports Illustrated, challenging each of his readers to donate at least $10 for the purchase of an anti-malaria bed nets -- and the incredible response from thousands of Americans across the country -- that led to the creation the Nothing But Nets campaign.