When Russian President Vladimir Putin moved to place a shawl over the shoulders of Peng Liyuan, the wife of China's President Xi Jinping, he set off alarm bells.
The Islamist extremists have seized a string of towns in the northeast, displacing hundreds of thousands and creating a humanitarian crisis. Monday's attack on a boys school killed up to 50 students.
Access to breast-milk banks is a problem in the developing world. A smartphone accessory could save lives by allowing health workers to set up mini milk banks anywhere.
The U.S. and China are easing visa rules for each other's citizens. It's a reciprocal agreement that President Obama says will benefit everyone — from students, to tourists, to businesses.
Obama announced at the Asia-Pacific Economic Cooperation summit that the U.S. and China reached an "understanding" that will lead to expanding goods covered by the Information Technology Agreement.
A former head of the Los Alamos National Laboratory has worked with Russia for years on securing loose nukes and upgrading facilities in the former Soviet Union. Siegfried Hecker is now writing a book about two decades of of nuclear cooperation.