- U.N. secretary-general urges stern measures against N. Korean nuclear test
- U.S. House panel leader vows to upgrade alliance with S. Korea
- Harvard: Dozens disciplined over exam cheating
- S. Korea, U.S. to hold naval exercise amid signs of N. Korean nuclear test
- More signs of imminent nuclear test detected in N. Korea: source
- N. Korea denounces U.S. for approval of S. Korean space rocket