United Nations General Assembly. Also while in New York, the Pope celebrated Mass at St. Patrick's Cathedral, met with disabled children and their families, and attended an event for Catholic youth, where he addressed some 25,000 young people in attendance. On the final day of the Pope's visit, he visited the World Trade Center site and later celebrated Mass at Yankee Stadium. In July 2008, the Pope travelled to Australia to attend World Youth Day 2008 in Sydney. On 19 July, in St. Mary's Cathedral, he made an apology for child sex abuse perpetrated by the clergy in Australia. On 13 September 2008, at an outdoor Paris Mass attended by 250,000 people, Benedict condemned the modern materialism – the world's love of power, possessions, and money as a modern-day plague, comparing it to paganism. In 2009, he visited Africa (Cameroon and Angola) for the first time as pope. During his visit, he suggested that altering sexual behaviour was the answer to Africa's AIDS crisis and urged Catholics to reach out and convert believers in sorcery. He visited the Middle East (Jordan, Israel, and Palestine) in May 2009. Benedict's main arena for pastoral activity was the Vatican itself, his Christmas and Easter homilies and Urbi et Orbi were delivered from St. Peter's Basilica. The Vatican is also the only regular place where Benedict travelled via motor without the protective bulletproof case common to most popemobiles. Despite the more secure setting, Benedict was victim to security risks several times inside Vatican City. On Wednesday, 6 June 2007, during his General Audience, a man leapt across a barrier, evaded guards, and nearly mounted the Pope's vehicle, although he was stopped and Benedict seemed to be unaware of the event. On Thursday, 24 December 2009, while Benedict was proceeding to the altar to celebrate Christmas Eve Mass at St. Peter's Basilica, a woman later identified as 25-year-old Susanna Maiolo, who holds Italian and Swiss citizenship, jumped the barrier and grabbed the Pope by his vestments and pulled him to the ground. The 82-year-old Benedict fell but was assisted to his feet and he continued to proceed toward the altar to celebrate Mass. Roger Etchegaray, the vice-dean of the College of Cardinals, fell as well and suffered a hip fracture. Italian police reported that Maiolo had in a prior action attempted to accost Benedict at the previous Christmas Eve Mass, but was prevented from doing