The Norwegians, for good reason, doesn't expect repeated attempts by right wing extremists every year in the future. In Scandinavia, lately we can look forward to such terrorism attempts every year from the islamists...
Edit: morsch, I was not talking about Germany! But ok, a simple point. East Germany was a dictatorship; intolerance and conspiracy theories grows in those. As I understand, it was much worse to e.g. have the wrong skin color there 20 years ago.
And this is in a country where right-wing extremist and populist parties rarely get more than a few percent in elections, unlike seemingly half of Europe. For instance, what's going on in Hungary is just disturbing, and things could go crazy all over Europe if/when the economic situation takes a sudden turn down.
(Edit: Added a few sentences regarding the current case of domestic right-wing terrorism in Germany.)
[0] http://en.wikipedia.org/wiki/National_Socialist_Underground
[edit] Also, as a mate of mine pointed out, they can't be real vikings anyway, as then they would be from York or Iceland or somewhere, rather than being descended from the people who were left at home to look after the sheep.
As I wrote in another comment, you find neonazis in Israel, that doesn't mean they are numerous. Today in Scandinavia, the left wing idiots in organized groups seems more violent than ND etc. I might be wrong, you got a reference?
Edit: Otoh, the word "Viking" has been used for so many things it has lost all specific meaning long ago. :-)