http://www.dni.gov/nic/PDF_2025/2025_Global_Trends_Final_Report.pdf
Thanks for that link. I downloaded the document.
One of the first things I noticed (and I only spent a couple of minutes skimming some random parts- it’s close 100 pp) is that “one of the greatest concerns” expressed in the report is the “acquisition and employment of biological agents” by a terrorist group to “create mass casualties”- a concern they think is more likely that such a group obtaining a nuclear device.
It’s not a pretty picture.