North Korea has recently introduced a sweeping new law which seeks to stamp out any kind of foreign influence - harshly punishing anyone caught with foreign films, clothing or even using slang, writes BBC.

Anyone caught with large amounts of media from South Korea, the United States or Japan now faces the death penalty. Those caught watching face prison camp for 15 years.

And it’s not just about what people watch.

Recently, Mr Kim wrote a letter in state media calling on the country’s Youth League to crack down on “unsavoury, individualistic, anti-socialist behaviour” among young people. He wants to stop foreign speech, hairstyles and clothes which he described as "dangerous poisons".