![PBS NewsHour - Segments show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/082/426/small/pbs-newshour-segments.png)
Summary: Japan and South Korea, the two most important U.S. allies in northeast Asia, are engaged in an increasingly grave feud. Relations between the two countries took a confrontational turn earlier this summer when Japan announced it would limit exports to South Korea; now, South Korea says it's ending a critical intelligence-sharing deal. Judy Woodruff reports on the historically rocky relationship.