US tells China to fully execute North Korea sanctions

The United States says it will be watching China closely to ensure it fully and continuously implements new U.N. sanctions on North Korea.Susan Thornton is the top U.S. diplomat for Asia. She says in the past, there's been a pattern in which China complies with sanctions after a North Korean provocation, but then slips back over time.Thornton says the U.S. wants to ensure that with the new sanctions, there's "not this kind of episodic back and forth that we've seen."Still, Thornton says China's