tag:bbc.co.uk,2008:cps:playlist:mediaAsset:14818918 2003: Attack on UN in Baghdad In 2003, a huge bomb devastated the Iraq headquarters of the United Nations in Baghdad. 22 people were killed, including UN envoy Sergio Vieira de Mello. 2011-09-07T16:47:24Z en News 14818918 99125 blocked tag:bbc.co.uk,2008:cps:mediaAsset:14818918 This video contains some graphic images