The former Vatican treasurer, the Australian Cardinal George Pell, has been freed from prison after winning an appeal against his conviction on charges of child sexual abuse. The appeal was upheld at Australia's High Court, all seven judges ruling unanimously. He has served more than a year of a six-year sentence for abusing two choirboys in the 1990s. Annemarie Evans asked our Australia correspondent Gerry Gannon if the court decision came as a surprise: