Iran and Russia provide an interesting contrast: Russia is no longer seen as a credible threat. ...but they nevertheless see the country as a friend, not a foe.

I don't think that follows from the poll. The poll was single-choice, asking for the greatest threat. That can include a lot of people who feel threatened by Russia, but think other countries are more threatening.

_{*Lunatic*, n.
One whose delusions are out of fashion.}