Many people complaining the current (or former) president of USA mention the fact that "he has the ability to launch nukes wherever and whenever he wants", "he has all the launch codes of the nukes", etc.
Their fear is that someone not intelligent/responsible might abuse that power.
My fear is that any one person would have that power.
But is this really the case? If Canada insulted the president, could he just nuke one of their cities the next day? Or is this thought just a bit of fear-mongering?