Ryanggang province is not near DMZ. It is on the other side of N. Korea, bordering China. It is also a land-locked province. How could SK's spy agency tranport so many snakes into the region deep inside N. Korea? In the end, it doesn't matter. They say whatever they want to do another day of S. Korea bashing, whether it makes sense or not. N. Korean people just play along, not trying to put much thought into it. Another day in a typical totalitarian land of big lies.
Baldrick, is that you?
The effect of this:
Consequently, residents in farming communities are shying away from the most basic duties agrarian life demands, such as cutting grass and weeding. Some have expressed intentions to put the blame squarely on Seoul if the cautionary negligence yields a poor harvest, according to the source.
Meanwhile, the fraught environment led smugglers, who spend much of their time in or around the river, to purchase high-quality rubber pants based solely on rumors that a single snake bite could be fatal. Demand briefly surged, driving up of one pair of trousers to 200,000 [24 USD] from 140,000 KPW [17 USD], but quickly fizzled out thereafter, bringing prices back down to normal.
https://www.dailynk.com/english/read.php?num=14007&cataId=nk01500