Our hearts must go out to the people of Norway, especially the relatives and friends of those killed and wounded in the terrible events there.
There is no justification of such mass-murder, none. There would be no justification if Norway was some sort of repressive dictatorship as opposed to one of the most open democracies in Europe. Mass murder of innocents in a deliberate effort to advance a cause is always wrong. When that mass murder extends to children it becomes especially heinous. What has been astonishing is that some moral bankrupts on the internet have been trying to use the events in Norway to make political points. So, we have idiots on the Right muttering about 'anger' caused by politicians supposedly ignoring their pet causes and idiots on the Left almost gleeful that the vicious murderer is a political enemy. Both are contemptible.
All of the evidence in this case is that these crimes were the work of a narcissistic psychopathic lunatic who either worked alone or received very limited support by some other extremists via the internet. Sadly, the world has always had nutcases with an inflated view of their own importance relative to the rest of us. Sometimes they do things like this, but it doesn't change their total irrelevance to any political debate carried on by the overwhelming moral and sane majority. The Norweigans are determined that they won't change their society in response to one evil, crazed fruitcake, and that should be our response as well.
We should have nothing but revulsion for anyone on either the Right or the Left who tries to use these events to advance their pet causes. But they will.