The proposed article highlights the secular and religious conflict in the context of modern Western society in the concept of Jürgen Habermas and Danièle Hervieu-Léger. An assessment is given of the problem of the integration of Muslim communities in the French society of the late 20th century, and examples are given. Particular attention is paid to the crisis of secular regulation of religion in modern society.The German sociologist and philosopher Jürgen Habermas notes the complex intertwining of the secular and religious in the events and reactions of September 11, 2001. If the religious motivations of the actions and beliefs of terrorists that have made a lethal weapon civilian airliners with passengers, sending them to the symbol of th...