American officials say they believe Russia was behind the hacking of Democratic National Committee emails. The U.N. expresses caution about a Russian plan to allow civilians and unarmed rebels to leave Aleppo, Syria. And Turkey ramps up a crackdown on the media and military. A panel of journalists joins guest host Indira Lakshmanan for analysis of the week's top international news stories.
The science of earthquakes. Shifting plates beneath the earth’s surface have created beautiful mountain ranges and devastating natural disasters. Why the earthquake in Haiti caused more destruction than a stronger one in Chile.
- Mike Blanpied associate program coordinator for the U.S. Geological Survey's Earthquake Hazards Program.
- Tim Beach professor of geography and geoscience; Cinco Hermanos chair in environment and international affairs, School of Foreign Service, Georgetown University.
- James Whitcomb head, Deep Earth Processes Section, Division of Earth Sciences at the National Science Foundation.
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