Disclaimer: The following description was created before the live broadcast aired and thus may not accurately reflect the content of the actual broadcast. Attorney Rosalba Piña, an immigration law expert, hosts this edition from Chicago. This week, Catholic priests celebrate the Mexican tradition of Posadas with a pilgrimage to Chicago's detention center to call for shelter for migrants and refugees. Piña talks to members of the Catholic Campaign for Immigration Reform and answers listener questions about the dos and don'ts when applying for residence and naturalization. Guest: Elena Segura, Director, Catholic Campaign for Immigration Reform, Chicago, IL, www.archchicago.org.