On Friday, NBC News publicized an assessment by U.S. intelligence agencies that North Korea has continued to enrich uranium for use in nuclear weapons at “multiple secret sites” recently.

Notably, these activities have continued even as North Korean leader Kim Jong Un has pursued a new round of diplomatic outreach to South Korea and the United States, culminating in two summit meetings with South Korean President Moon Jae-in and one summit meeting with U.S. President Donald J. Trump in Singapore—the first of its kind between a North Korean and U.S. leader. The intelligence