China

Viewed for decades as capitalist exploitation, tipping is now encouraged at some upscale urban restaurants catering to wealthy young customers. Restaurateurs insist it's strictly voluntary.

U.S. and Chinese educators are trying to create more opportunities for American minority students to study in China, which has grown increasingly aware of the importance of diversity in U.S. culture.

North Korea may face tougher sanctions in response to its most recent nuclear test, the most powerful blast yet. But Pyongyang keeps finding workarounds to the punitive measures.