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Former spy: N. Korean agents operating in U.S., S. Korea
02:29 - Source: CNN
Inside North Korea 16 videos
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Former spy: N. Korean agents operating in U.S., S. Korea
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north korea nuclear facility upgrades 6-27-2018
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Photos show N. Korea improving nuclear facility
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North Korea shakes up its military leadership
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CNN reporter's surreal journey inside N. Korea
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Hyon Song-Wol (C), the leader of North Korea's popular Moranbong band, arrives at Seoul station in Seoul on January 21, 2018 before boarding a train bound for the eastern city of Gangneung. North Korean delegates arrived in Seoul on January 21 on their way to inspect venues and prepare cultural performances for next month's Winter Olympics, in the first visit by Pyongyang officials to the South for four years. / AFP PHOTO / KOREA POOL / - / South Korea OUT (Photo credit should read -/AFP/Getty Images)
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Who is North Korean pop star Hyon Song Wol?
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Textile factory Inside North Korea 1
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Kim Jong Un delivers New Year's address
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North Korea streets 1
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North Korea's largest textile factory
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Communal living in Pyongyang
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North Korea streets 1
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A glimpse of life in Pyongyang
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This undated picture released from North Korea's official Korean Central News Agency (KCNA) on September 16, 2017 shows North Korean leader Kim Jong-Un (R) inspecting a launching drill of the medium-and-long range strategic ballistic rocket Hwasong-12 at an undisclosed location. Kim vowed to complete North Korea's nuclear force despite sanctions, saying the final goal of his country's weapons development is "equilibrium of real force" with the United States, state media reported on September 16. NK leadership watch says: Kim Jong Un watches a missile drill on September 15, 2017. Also in attendance behind him are Kim Jong Sik and Ri Pyong Chol (Photo: KCNA).
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Inside story of N. Korean smuggler's paradise
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The home of a North Korean Workers' Party member
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A North Korean defector darts across the DMZ dividing the two Koreas in this screenshot of handout video provided by the United Nations Command.
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Video shows North Korean defector's escape
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North Korean soldiers (R) look at the South side while US Vice President Mike Pence (not pictured) visits the truce village of Panmunjom in the Demilitarized Zone (DMZ) on the border between North and South Korea on April 17, 2017. Pence arrived at the gateway to the Demilitarised Zone dividing the two Koreas, in a show of US resolve a day after North Korea failed in its attempt to test another missile. / AFP PHOTO / JUNG Yeon-Je (Photo credit should read JUNG YEON-JE/AFP/Getty Images)
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What it's really like to be inside North Korea
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Kim Yo Jong, the youngest sister of North Korean leader Kim Jong Un, seen in March 2014.
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Kim Jong Un promotes his sister
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This undated picture released from North Korea's official Korean Central News Agency (KCNA) on October 29, 2017 shows North Korean leader Kim Jong-Un (C) inspecting the Pyongyang Cosmetics Factory, as his wife Ri Sol-Ju (R) looks on. / AFP PHOTO / KCNA VIA KNS / STR / South Korea OUT / REPUBLIC OF KOREA OUT ---EDITORS NOTE--- RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT "AFP PHOTO/KCNA VIA KNS" - NO MARKETING NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS THIS PICTURE WAS MADE AVAILABLE BY A THIRD PARTY. AFP CAN NOT INDEPENDENTLY VERIFY THE AUTHENTICITY, LOCATION, DATE AND CONTENT OF THIS IMAGE. THIS PHOTO IS DISTRIBUTED EXACTLY AS RECEIVED BY AFP. / (Photo credit should read STR/AFP/Getty Images)
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Kim Jong Un's wife makes rare public appearance
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Watch: N. Korea performance shows US in flames
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Story highlights

Kim Dong-shik said he spied for North Korea before being caught

He was shot by officers in Seoul before he could commit suicide, as instructed

Kim said North Korean agents are still working worldwide for the regime

Seoul CNN  — 

Looking at the poison pens and torch guns, you would be forgiven for thinking you were on a James Bond set. But these weapons are real and are still part of the arsenal of North Korean spies.

Agents from the most isolated country on Earth are not a thing of the past, said one man who claims his job once was to infiltrate South Korea on missions for the Kim regime.