The article said that the author accepted the news of Kim Jong Un's inspection of the truce village of Panmunjom through internet.

What matters is that the south Korean media learnt of his inspection after Central TV of the DPRK put out the story about it, the article said, and went on:

Question is what the south side had been doing when Kim Jong Un toured Panmunjom together with lots of officials, and why the south had been ignorant of it.

Kim Jong Un had a photo taken on the balcony of Phanmun House in broad daylight with a pair of binoculars close to his eyes. He had the photo taken with general officers and guards of Panmunjom.

Kim Jong Un stayed in Panmunjom for a long while but the south side was unaware of this and even failed to take a photo of him. Moreover, the south side is now amid high tension as the military exercises are under way.

The mode of Kim Jong Un can be amounted to "busting hard-line stand".

The author could be certain of the personality of Kim Jong Un about whom he heard only through rumor as regards the "Cheonan" case in 2010.

No matter how much plausible evidence the south side may produce, they remain most vulnerable in the north view as it had not been involved in the sinking case. This means that verification of the evidence by experts can easily turn down the rival's assertions.

Kim Jong Un's mode of counteraction is characterized by neutralizing the rival's assertions and activities by the use of less energy while hitting the weakest point of the enemy.

Kim Jong Un displays wonderful tricks in reliance on the power of the country, army and people. Analysis of them proves that they are very diverse and ever-changing.

Kim Jong Un's activities are like the most difficult higher mathematics problem.

South Korean experts described his recent visit to Panmunjom as demonstration of his pluck. But they can hardly understand it as they are not able to solve an arithmetic problem.