Sure, but let's say we take the "stop freaking out about it" approach and it enables further mobilization. Suddenly those things change in a hurry.
> The idea of terrorists getting hold of a nuke and actually being able to use it effectively is, frankly, ridiculous.
Unless a terrorist organization is able to morph into a pseudo-state. Which sounds a little less ridiculous than it did five years ago.
The point is primarily that chastising fear/effort/resources/counterattacks based only on the current statistical threat level is short-sighted.