Father Zollner, one of the founding members of the Pontifical Commission for the Protection of Minors, speaks about the resignation of Marie Collins and efforts to prevent abuse worldwide.
The invitation came amid increasingly closer relations between the Vatican and al-Azhar University, which is considered the most authoritative theological-academic institution of Sunni Islam.
Pope Francis asked God's forgiveness for the failures of the Catholic Church during the 1994 Rwanda genocide and for the hatred and violence perpetrated by some priests and religious.