Everything that could cause mass destruction with people, media, and all those kinds of stuff could be a threat, not just a person, but to people that lives innocently or maybe who are also guilty would feel that. The threat is not something to be taken lightly and I think Russia has the potential to be a threat.
The difference is that Russia has the potential to be a threat and the United States has proven itself to be a threat. The US is the only country which has used nukes against the civilian population. Also, they have invaded 70+ nations ever since the end of WW2.