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 XVI 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 behavior 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.