[2][a] Formerly a program of the US-Korea Institute at Johns Hopkins University's Paul H. Nitze School of Advanced International Studies, it is now housed at the Stimson Center and is directed by Senior Fellow Jenny Town.

[3] Notable contributors include nuclear scientist Sigfried Hecker,[4] former Associated Press Pyongyang Bureau Chief Jean H. Lee,[5] cybersecurity expert James Andrew Lewis,[6] and North Korea Tech founder Martyn Williams.

Satellite imagery analysis by Jack Liu showed low-level activity at key facilities and sites at Sohae.

[13] Ten days after the article was published, North Korea conducted its launch of the Unha-4 carrying the Kwangmyongsong-4 satellite at Sohae.

[18] In September 2016, 38 North reported new activity near all three portals at the Punggye-ri Nuclear Test Site, based on satellite imagery analysis conducted by Joseph Bermudez and Jack Liu.