We look at issues around the news and information that defectors are smuggling out of Pyongyang.

For 63 years, the governments of North and South Korea have been in a political stare-down, across a heavily guarded border and a demilitarised zone.

And the two media scenes could not be more different.

North Korea's media are among the world's most censored, with just one television network, a state-run mouthpiece pumping out the government line. In South Korea journalists have to watch what they say about their neighbour - a vague, antiquated law prohibits the publishing of anything sympathetic to North Korea.

Operating under the radar is a growing network of North Korean citizen reporters who work with media outlets based in Seoul, funded by the US, and staffed with defectors from the north.

Equipped with not much more than mobile phones, those sources smuggle information out of North Korea that gets picked up by the mainstream media. They take risks, with the apparent aim of showing the real North Korea to the rest of the world.

But how does one assess the credibility of invisible sources? How can one begin to verify what they are reporting?

The Listening Post’s Gouri Sharma looks at an underground network that is gathering news in North Korea.