Struggling migrants speak out in Marseille ahead of the Pope's visit

Pope Francis heads Friday to Marseille for a two-day visit focused on the Mediterranean and migration, and bringing a message of tolerance amid bitter debate over how Europe manages asylum seekers.

The desperate conditions that cause many people to leave their homes for a new life, and the risks they take to do so, have been a key theme in the 86-year-old's decade as head of the worldwide Catholic Church.But his visit to the French port city, to take part in a meeting of Mediterranean-area Catholic bishops and young people, puts him at the center of a political storm.