She helped crack North Korea’s code of silence

Declassified North Korea still 8

Video Ad Feedback

She helped crack North Korea's code of silence

Declassified

Jean H. Lee, an American journalist who lived in North Korea, tells the forgotten story of the USS Pueblo, an American spy ship captured by North Korea.

04:11 - Source: CNN

CNN's Original Series 'Declassified' 55 videos

Declassified North Korea still 8

Video Ad Feedback

She helped crack North Korea's code of silence

04:11

Now playing

- Source: CNN

declassfied kodak 05

Video Ad Feedback

Meet the people who helped prevent WW III

04:04

Now playing

- Source: CNN

Declassified Montana still 8

Video Ad Feedback

Montana mom went undercover to fight terrorism

03:45

Now playing

- Source: CNN

declassified russian bots thumb 1

Video Ad Feedback

His part-time job is Russian troll hunter

04:01

Now playing

- Source: CNN

NEW YORK - OCTOBER 15, 2001: (SEPTEMBER 11 RETROSPECTIVE) A corporate mailroom employee uses gloves while sifting through letters October 15, 2001 in New York City. Recent reports of anthrax in the mail have caused procedural changes in mailrooms throughout the country. (Photo by Mario Tama/Getty Images)

Video Ad Feedback

Are we at risk for an anthrax attack?

01:07

Now playing

- Source: CNN

sr71 Blackbird 4

Video Ad Feedback

The world's fastest plane

01:48

Now playing

- Source: CNN

crack99 takedown declassified ron_00000101.jpg

Video Ad Feedback

Watch feds arrest a Chinese cyber pirate

01:34

Now playing

- Source: CNN

Ana Montes booking photo

Video Ad Feedback

Another Cuban mole in the US government

01:27

Now playing

- Source: CNN

Ana Montes booking photo

Video Ad Feedback

How the U.S. busted a Cuban spy

01:25

Now playing

- Source: CNN

Declassified Ep. 4 Montes 2_00011710.jpg

Video Ad Feedback

Cryptic code in purse exposes Cuban spy

01:18

Now playing

- Source: CNN

Declassified Ep. 2 Saddam 1_00002816.jpg

Video Ad Feedback

The search for Saddam Hussein

01:25

Now playing

- Source: CNN

Declassified Ep. 2 Saddam 2_00001913.jpg

Video Ad Feedback

The manhunt for Saddam Hussein

01:12

Now playing

- Source: CNN

north korea history spying assassinations pkg hancocks _00001209.jpg

Video Ad Feedback

North Korea's history of covert operations

02:15

Now playing

- Source: CNN

erin simon area 51 is real_00010325.jpg

Video Ad Feedback

Area 51 is real, but sorry, no aliens

02:11

Now playing

- Source: CNN

myers apartment search declassified ron _00012020.jpg

Video Ad Feedback

What US spy hunters found in a traitor's home

01:28

Now playing

- Source: CNN

nicholson declassified father son spies _00001815.jpg

Video Ad Feedback

Phone calls make CIA traitor's son a suspect

01:38

Now playing

- Source: CNN

Walter Kendall Myers, 72, and his wife, Gwendolyn Myers, 71, are charged with conspiracy to act as illegal agents of the Cuban government, providing classified information to that government and wire fraud, according to court documents.

Video Ad Feedback

Cuban spy Kendall Myers had a surprising partner

01:02

Now playing

- Source: CNN

hijacked egypt air passenger declassified ron_00010807.jpg

Video Ad Feedback

Hijacking victim: 'I realized it's not a drill'

01:34

Now playing

- Source: CNN

One of the three hijackers of EgyptAir flight 648 appears at the open doorway at Luqa airport in Valletta, Malta, Nov. 24, 1985. The jet bound for Athens was diverted to Malta on Nov. 23 by the Abu Nidal Group. (AP Photo/Pardi)

Video Ad Feedback

'I will kill a passenger every 15 minutes'

01:25

Now playing

- Source: CNN

Malta 1985 egyptair hijack 01

Video Ad Feedback

Shots fired on a plane at 35,000 feet

01:27

Now playing

- Source: CNN

Declassified Ep. 6 Angry Talon 1_00011203.jpg

Video Ad Feedback

Ex-Taliban officer helped free American hostages

01:20

Now playing

- Source: CNN

Declassified Ep. 6 Angry Talon 2_00002901.jpg

Video Ad Feedback

Film about Jesus lands aid workers in a Taliban prison

01:03

Now playing

- Source: CNN

Declassified Ep. 7 Chi Mak 2 _00003404.jpg

Video Ad Feedback

Dumpster diving for evidence of a spy

01:19

Now playing

- Source: CNN

Declassified Ep. 7 Chi Mak 2 _00001419.jpg

Video Ad Feedback

Searching a spy's home without leaving a trace

01:16

Now playing

- Source: CNN

Declassified Ep. 1 Trigon/Moscow 1_00002328.jpg

Video Ad Feedback

Recruiting a Soviet to spy for America

01:24

Now playing

- Source: CNN

Declassified Ep.1 Trigon/Moscow 2 _00003021.jpg

Video Ad Feedback

An American female spy goes undercover in Moscow

01:31

Now playing

- Source: CNN

Declassified Ep. 8 Hexagon 1_00003103.jpg

Video Ad Feedback

The Cold War version of Google Earth

00:48

Now playing

- Source: CNN

Declassified Ep. 8 Hexagon 2_00005724.jpg

Video Ad Feedback

Spying on the Soviets from space

01:08

Now playing

- Source: CNN

Declassified Ep. 5 Cross International_00010612.jpg

Video Ad Feedback

The fake company that busted an Iranian arms dealer

01:32

Now playing

- Source: CNN

Declassified Ep. 5 Cross International 2_00003012.jpg

Video Ad Feedback

The art of going undercover

01:07

Now playing

- Source: CNN

LOS ANGELES, CA - OCTOBER 26: Emily Moore administers an inoculation as free flu shots are given to people over 50 by the Los Angeles County Department of Health Services on October 26, 2005 in Los Angeles, California. An estimated 60 million flu shots will be given in the United States this season. (Photo by David McNew/Getty Images)

Video Ad Feedback

How the flu spreads

01:29

Now playing

- Source: CNN

Computer security and hacking concept. Ransomware virus has encrypted data in laptop. Hacker is offering key to unlock encrypted data for money.

Video Ad Feedback

Ransomware: How an attack could impact you

02:03

Now playing

- Source: CNN

declassified wiretapping 1

Video Ad Feedback

Why wiretapping is still used by agencies

01:31

Now playing

- Source: CNN

Live sarin and VK nerve agent training in chemical warfare defense. --- Photo by Leif Skoogfors/Corbis | Location: Fort Leonard Wood, Missouri, United States. (Photo by Leif Skoogfors/Corbis via Getty Images)

Video Ad Feedback

What you should know about sarin gas

01:31

Now playing

- Source: CNN

declassified peacock heart attack_00001117.jpg

Video Ad Feedback

'I thought he was gonna have a heart attack'

01:32

Now playing

- Source: CNN

declassified peacock bad guys knew me _00002224.jpg

Video Ad Feedback

How the DEA got close to an alleged terrorist

01:20

Now playing

- Source: CNN

informant declassified ron clip episode 4 _00010421.jpg

Video Ad Feedback

Drug money pays for attacks on Americans

01:31

Now playing

- Source: CNN

afghanistan drugs declassified ron clip episode 4_00000611.jpg

Video Ad Feedback

What was the DEA doing in Afghanistan?

01:01

Now playing

- Source: CNN

bagcho's ledger declassified ron clip episode 4_00002217.jpg

Video Ad Feedback

Ledger book links a drug kingpin to terrorism

00:54

Now playing

- Source: CNN

criminal mastermind declassified ron clip episode 4 _00012724.jpg

Video Ad Feedback

Meet a global 'godfather' of heroin

01:35

Now playing

- Source: CNN

the order ron bust declassified_00004406.jpg

Video Ad Feedback

White supremacist leader escapes FBI raid

01:28

Now playing

- Source: CNN

the order ron shoot out declassified _00012114.jpg

Video Ad Feedback

A fiery shootout with an American terrorist

01:24

Now playing

- Source: CNN

the order ron armored truck declassified_00005319.jpg

Video Ad Feedback

How white supremacists robbed an armored truck

00:59

Now playing

- Source: CNN

the order ron violent race hatred declassified_00002807.jpg

Video Ad Feedback

Ex-FBI agents explain white supremacist agenda

00:36

Now playing

- Source: CNN

declassified peacock tense moments before arrest_00002422.jpg

Video Ad Feedback

Scary moment before alleged terrorist is nabbed

01:05

Now playing

- Source: CNN

declassified peacock bad guys knew me _00004415.jpg

Video Ad Feedback

DEA chief gets a disturbing message

01:34

Now playing

- Source: CNN

Russian flag

Video Ad Feedback

The Russian-US spy game explained

01:06

Now playing

- Source: CNN

declassified ron metso_00000530.jpg

Video Ad Feedback

Tracking a Russian deep-cover spy

01:03

Now playing

- Source: CNN

declassified ron best spy cover_00002423.jpg

Video Ad Feedback

Deep-cover Russian spies explained

01:35

Now playing

- Source: CNN

declassified ron russia monitors_00001411.jpg

Video Ad Feedback

Russian deep-cover spy caught on camera

00:55

Now playing

- Source: CNN

declassified breaking and entering 4

Video Ad Feedback

How do spies break into your home?

01:02

Now playing

- Source: CNN

declassified secret identity

Video Ad Feedback

What is a cover identity?

00:57

Now playing

- Source: CNN

what is cryptography declassified mike rogers orig_00002316.jpg

Video Ad Feedback

How do spies use cryptography?

01:08

Now playing

- Source: CNN

what is a dead drop declassified mike rogers rock

Video Ad Feedback

How do spies conduct dead drops?

00:58

Now playing

- Source: CNN

what is a stakeout declassified mike rogers orig_00002612.jpg

Video Ad Feedback

What goes into a stakeout?

00:53

Now playing

- Source: CNN