Peter Kassig was an Iraq War veteran who went to Syria to volunteer at hospitals. In a profile aired by CNN in 2012, Kassig said he's an idealist who believes in hopeless causes.
Christine Fair, author of the book Fighting to the End: The Pakistan Army's Way of War, talks about why she believes the U.S. and Pakistan face a conflict of interest in fighting the Taliban.
Voters in Brazil go to the polls Sunday to choose a new president. Incumbent Dilma Roussef is up against environmentalist Marina Silva and others, in a nail-biting race.
Ebola continues to defy international borders, no matter what precautions are taken. Correspondent Jason Beaubien talks with NPR's Ari Shapiro about the deteriorating situation in Liberia.
NPR international correspondent Deb Amos just returned from her three-week trip along the Turkey-Syria border. She talks to NPR's Ari Shapiro about the conflict she has been covering.
The Number of the Week is: 80,000. That's how many are protesting in Hong Kong, according to organizers. But data journalist Mona Chalabi says estimating crowd size isn't an exact science.
Bishops are meeting with Pope Francis these next two weeks for an extraordinary conference to debate family matters – including hot-button issues like artificial contraception and gay civil unions.
Health officials are looking to those who have recovered from Ebola to treat new cases. The World Health Organization hopes to find antibodies in the blood of people who have fought off the virus.