HARDtalk is in Geneva, the headquarters of the Kofi Annan Foundation which marks its tenth anniversary this year. Zeinab Badawi speaks to the former Secretary-General of the United Nations as he reaches his eightieth birthday, in front of an audience. In a career spanning six decades at the United Nations, he has held several senior positions including two terms as Secretary-General until 2006. There were high points such as the award of the Nobel Peace Prize as well as tragic events such as the Rwandan genocide and the Srebrenica massacre of Bosnian Muslims. What are his biggest worries today and does he have any regrets?