North Korea's new ICBM looks and works an awful lot like a Russian ICBM, experts say

• North Korea tested its new Hwasong-18 intercontinental ballistic missile last month.
• The new IBCM uses "solid-fueled" technology, elevating the threat posed by North Korea.
• Experts say that Russia likely provided the technology to make it happen.

North Korea's intercontinental ballistic missile is its most threatening yet, and it likely has Russia to thank, experts say.