Austrian Chancellor Wolfgang Schuessel called for tougher action against extremists in an interview on Sunday. A liberal, democratic system such as in Europe must not tolerate the existence of groups which called for intolerance and violence, he said in the paper Oberoesterreichischer Sonntags Rundschau. It was vital to find and expose the tensions within one's own society, DPA reported. In view of the terrorist attacks in London, "one must ask oneself the question whether all who live in the midst of Europe have inwardly really arrived in Europe, whether they really feel themselves to be European. There are borders here too", he said. "There are limits to the ability to accept people. We Austrians have done that quite well, and there is in fact a model of recognition of religious communities," Schuessel added. There were also limits to the ability to accept people in the quantitive sense. Each country had to judge that for itself. He said that if the Austrian authorities insisted that people wanting to immigrate should have access to the language and basic knowledge of Austrian culture, "that's not discrimination, but the condition for the first, second and third generation to be fully integrated."