Your first sentence has been true for the better part of a century, now. And - while the American government is undoubtedly less corrupt and more liberal than the Russian one - I don't really see the odds of America using nukes being significantly lower than the odds of Russia using them.

(Also: I'm not entirely clear on what you mean by "out of control" - plenty of countries engage in extrajudicial killings: Russia, obviously, but also Israel, Syria, America...)