Understood, but even if the DPKR had a 10 Kt package that is ten time the weight & size, it would still fit in an Econoline van.
The point I wanted to make is that the press & politicians focus on ICMBs when that type of delivery is neither technically nor financially efficient for third tier players.
And such sophisticated delivery systems are unnecessary. The liberals try to lull us into a false sense of security saying, “Oh, Iran (or N. Korea or ISIS) do not have missles capable of reaching the US”.