Europe has undergone a demographic revolution it never expected. A half century of mass immigration has failed to produce anything resembling a melting pot. By overestimating its need for immigrant labor and underestimating the culture-shaping potential of religion, Europe has trapped itself in a problem to which it has no obvious solution. Muslims dominate or nearly dominate important European cities. As increasingly assertive immigrant populations shape the continent, the foundations of European culture and civilization are being challenged--and replaced.--From publisher description.