Another possibility is that the command is executed (meaning we are in the kaboom scenario), and the US does not escalate immediately but says that there will be a respond at a time and place of their choosing. This could give time for someone to overthrow Putin to prevent escalation.
Another possibility is that the command is executed (meaning we are in the kaboom scenario), and the US does not escalate immediately but says that there will be a respond at a time and place of their choosing. This could give time for someone to overthrow Putin to prevent escalation.