Yes, and the original post was about screening for right-wing extremism, not "right wingers." That's why I corrected you. You need to work on your reading comprehension.
To provide some background as an example, a member of the German Kommando Spezialkräfte (KSK) was arrested last year as a member of a right-wing terrorist group that planned to overthrow the government. That's just an example, there are many more.
Now do everyone a favor and stop commenting on articles you obviously haven't read, especially when you display not the slightest knowledge of the context.