How should U.S. and allies confront North Korea?

Can North Korea be coerced by China and U.S. working together? More

The long-simmering standoff between the United States and North Korea is heating up again. As the Trump administration draws a tougher line with the regime, what options are open to the U.S., its allies and China? Judy Woodruff speaks with former Secretary of Defense William Perry.

AIR DATE 4/17/17