Pictured are four cardinals who have been appointed by Pope Francis to preside over sessions of the October 2018 Synod of Bishops on young people, the faith and vocational discernment. From left are Chaldean Catholic Patriarch Louis Sako of Baghdad, Iraq; Cardinal Desire Tsarahazana of Toamasina, Madagascar; Cardinal Charles Bo of Yangon, Myanmar; and Cardinal John Ribat of Port Moresby, Papua New Guinea. (CNS/Paul Haring)