In a couple generations biophysics has learned about the structure of human genes to how to edit them. Probably terrorists lag behind a generation.
It is possible today to use biology as a weapon rather easily for those with a PhD. Nations may also use genetic design to improve their human stock from enhancing biceps to brains, endurance to an ability to live better in space. Certainly some will go in new directions especially as humanity is free again to be free from other’s interference at some time and space different from Earth-now.
https://www.gene-editing.org/genome-editing
http://www.genetherapynet.com/gene-editing-tools.html
Dangerous combination: Is CRISPR a potential weapon for terrorists?
https://fortune.com/2017/10/23/designer-babies-inequality-crispr-gene-editing/
Mazhar Adli [CC BY 4.0 (https://creativecommons.org/licenses/by/4.0)%5D
Garrison Gibson: books and blog 