Facebook Question: Which is More Dangerous, Islamic Extremist Or Ultra Rightist?

In view of the 10th anniversary of 9-11 terrorist attack and a horrible massacre in Norway, I ask a question on my Facebook, “Which is more dangerous, Islamic extremist or ultra rightist?” I shall appreciate it, if you answer this question.

You can leave a comment on the linked page. This is not a Gallup survey, as samples are not sufficient. Rather than statistical data, I hope to enjoy mutual interactions.