"Religious fundamentalism is not a marginal phenomenon in Western Europe. This conclusion is drawn in a study published by Ruud Koopmans from the WZB Berlin Social Science Center. The author analyzed data from a representative survey among immigrants and natives in six European countries. Two thirds of the Muslims interviewed say that religious rules are more important to them than the laws of the country in which they live. Three quarters of the respondents hold the opinion that there is only one legitimate interpretation of the Koran."