Russia influencing North Korea

The Week posted an article titled "Russia is Turning North Korea Into its Agent of Mischief," by Kyle Mizokami. In this article it states that Russian President Vladmir Putin communicate regularly with North Korean leader Kim Jong Un. It looks like the two cold war allies are communicating again they both say they only talk about economic issues but in reality we do not know what they are talking about. This is bad because the Russian can tell the North Koreans what to do and they will do it because they have authority issues. When the Soviet Union went under North Korea began to ally with Chian under Kim Jong Il. But, now Kim Jong Un is turning towards Russia. Russia wants to sell natural gas and electricity, but i believe not a lot of people use electricity in North Korea. Then, the article goes off on how Vladimir Putin wants to expand the power of Russia and expand the Soviet Unions power again.  here is the link