Kim Jong Un said an elevated U.S. security partnership with South Korea and Japan poses a grave threat to his country and vowed to further bolster his nuclear weapons program, state media reported ...

The visit by Prime Minister Shigeru Ishiba is the first major indication of how the Trump administration will handle relations with allies such as Japan and South Korea.

NPR's Ayesha Rascoe talks with economist Mary Lovely of the Peterson Institute about trade deficits and the role they play in international trade.