external In the Media September 8, 2021 Jeffrey Treistman, associate professor of national security, wrote an op-ed on right-wing extremists and the severe threat to national security. https://thehill.com/opinion/national-security/571287-right-wing-extremism-history-repeats-itself-and-the-worst-may-be news-all news-in-the-media year-2021 month-september