Well, Rasmussen refused to meet with the Arab ambassador in September since there was no immediate threat involved.  He only met with the ambassadors now since the riots occurred and as prime minister he had a responsibility to do so.  
But, lets not forget that governments are also responsible for integrating their minorities and European governments tend to ignore problems related to their Arab population.  I am not justifying the riots, but just pointing out that European governments have helped the Arab marginalization, which in turn has led the Arabs to feel the antipathy towards the European countries where they have immigrated.  

In response to the comment by the Norwegian Chef

I know this is related to the situation occuring in the Middle East, but since you put so much epmhasis on the fact that the Arab leaders organize the masses, than shouldn't Rasmussen have used the opportunity back in September to talk to the Arab ambassadors and maybe through dialogue with the ambassadors, some of the recent events would have been avoided.

I just think that governments should not ignore the Muslim issue in Europe, even if they are right-wing governments and fear losing elections.