05/08/2017
https://www.congress.gov...
"We all know--we certainly agree that a change in China's behavior is a prerequisite for getting a change in North Korea's behavior."
"But it has not worked. It has not worked. North Korea continues to accumulate enriched materials."
"Clearly, North Korea presents one of our greatest challenges."
"Our knowledge of climate change and the impact of climate change has changed so dramatically in the last 35 years."