With greatest of genuine respect - мой друг I don't believe it.
With all due acknowledgement to Comrade Korolev et al and your nations expertise in missiles/rocketry - a cruise missile with a miniature reactor and unlimited range - this is the Dagger - no?
Like Comrade Kim's missile that will threaten the US - show me a test - and then you've convinced me.
I won't be frightened of the North Koreans until they air burst a nuke, re-entered from orbit.
Similarly, until I see said cruise missile travel around the world and keep going - it's just propaganda.