Absent evidence of N. Korea’s involvement, S. Korea’s response to the recent sinking of one of its ships has been measured. But public anger about the incident will impact June elections and increase…

China is unlikely to exert more pressure on North Korea, so Washington should redirect its own role in brokering inter-Korean peace and engaging Pyongyang, says CFR’s Nicole E. Lewis.

The events convulsing the Middle East should prompt supplier states to place a moratorium on most nuclear cooperation with the region and devise long-term plans for better safeguarding major nuclear …

The Zika virus is spreading to North America, and U.S. delays in approving research and funding could lead to a public health disaster, write Larry Brilliant and CFR’s Laurie Garrett.

Venezuela’s stepped-up efforts to develop nuclear power and tighten its bonds with Iran require a firm but deft diplomatic response from the Obama administration, write CFR’s Joel Hirst and Jonathan …