National Geographic: Though Ebola is unlikely to gain a substantial foothold in the United States, even after the first U.S. diagnosis of an Ebola case this week, author David Quammen argues that our common humanity calls on us to help the people of West Africa. The virus has killed more than 3,400 people there and infected thousands more, according to the World Health Organization, and continues to spread at an out-of-control rate. elated: "Ebola Questions You Were Afraid to Ask.")
Talking from his home in Montana,...