This would be bad but not catastrophic if NK did not have a funtioning long range delivery system.
They probably got the system from China. How did china get the advanced system? Well bill clinton gave it to them in the late 90s. Right after the dustup over Chinese campaign contributions to clinton. I'm sure that the timing was just a coincidence. I remember when that happened and recently googled it to be sure. clinton certainly had the best interest of the USA in mind when he did that.