DiscoverNorth Korea News Podcast by NK NewsStephen Mercado: How Japan crafted secret weapons to counter North Korea
Stephen Mercado: How Japan crafted secret weapons to counter North Korea

Stephen Mercado: How Japan crafted secret weapons to counter North Korea

Update: 2025-09-18
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This week, Stephen Mercado returns to the NK News Podcast to discuss his new book, “Japanese Spy Gear and Special Weapons,” and how Japan’s secretive Noborito Research Institute supported covert operations targeting the DPRK during the Korean War. 



Mercado is a former CIA analyst and open source officer who worked for most of his career in the Foreign Broadcast Information Service, later named the Open Source Center and now known as the Open Source Enterprise. He retired in 2017 and first appeared on episode 324 of this podcast.



About the podcast: The North Korea News Podcast is a weekly podcast hosted by Jacco Zwetsloot exclusively for NK News, covering all things DPRK — from news to extended interviews with leading experts and analysts in the field, along with insight from our very own journalists.



NK News subscribers can listen to this and other exclusive episodes from their preferred podcast player by accessing the private podcast feed. For more detailed instructions, please see the step-by-step guide at nknews.org/private-feed.
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Stephen Mercado: How Japan crafted secret weapons to counter North Korea

Stephen Mercado: How Japan crafted secret weapons to counter North Korea

NK News