In the category of dumb polling, Remembering Sept. 11 has produced yet another such example. People were asked whether "the ability of terrorists to launch another major attack on the United States is greater than it was at the time of the 9/11 attacks." Now that's something about which people can have opinions, but those opinions are grounded in damned little information. If you live in Orlando or San Bernardino, you might think you had an inkling. But otherwise, any answer from most of us amounts to our personal guess based on background media noise.
What researchers found is that threat assessments have become a partisan issue: Dems and independents think we are more secure; Republicans are still more likely to be scared stupid.
Now these authors are selling consulting about preventing terrorism to client governments (a post-9/11 growth industry), so it is not surprising their picture is dire. Still, it seem persuasive here in the land of the uninformed.