psychopaths will explode a nuke just to see the look of horror on your face.

And, of course they will think that they are one up on you because they invested in a lead lined suit. But, they will take the risk, just to see the look on your face, when they tell you that they are going to blow up the city.

Psychopaths are defined by their lack of warm empathy.
And the elite practice child torture to split the minds of their children, turning them into psychopaths.

But, there is only one thing that binds these psychopaths, they are all evil, and want destruction. Or, in other words, they are all going the same direction.

However, that said, good aliens have decided to not let us have a full on nuke-war. That would affect too many other beings/races here, so it will be stopped.