In an email exchange with Haaretz on Sunday, Galtung requested to clear up his claims. “When we know nothing about who is behind Breivik, including whether there is anybody at all, any hypothesis is legitimate; that is in the nature of research,” wrote Galtung.

“I consider the Mossad highly unlikely, but it is illegitimate to eliminate it as a hypothesis with no evidence,” continued Galtung.

Mr. Galtung, I consider you a raging anti-Semite, a nasty old bigot and a first class idiot.

I also think you’re insane, delusional and should have been committed long ago. However, since I don’t have any evidence to prove that, I must put it out there, because it would be illegitimate of me to eliminate it as a hypothesis.