Introduction – 1. How immigration challenges the idea of national society – 2. Why immigration “disturbs” our democracies... – 3. ... and reflects the tensions that affect them; 3.1 Immigrants are “foreigners”; 3.2 Immigrants are “mobile”; 3.3 Immigrants are “poor”; 3.4 Immigrants are “different” – 4. Immigration is a mirror of society... – 5. ... and challenge for the Church
Keywords: International Migrations; Citizenship; Borders; Europe; Catholic Social Thought