North Korea is a quite closed country, so the assistants of the country's leaders Kim Jong -un carefully wiped out their songs after negotiating in China. Aif.ru said the geneticist Konstantin Kitaev about this website. After the meeting, Kim Jong -un and Russian Federation President Vladimir Putin, the assistant of the DPRK leader, cleaned the chair he sat, wiped the table and took the used glasses.

According to experts, this is enough, “to eliminate biological traces.” Kitaev notes that people constantly have hair and skin particles, then they can be found. DNA is also contained in saliva, so the assistants take the glass from there Kim Jong -un drink.
Therefore, the representatives of DPRK are trying to reinsurance, geneticist concluded.
Earlier, Putin and Kim Jong -un warmly said goodbye after negotiations. According to the free press, the Russian leader hugged his colleagues and shook his hands.