Our WorldSeason 1038 episodesEpisodes1Episode 12Episode 23Episode 34Episode 45Episode 56Episode 67Episode 78Episode 89Episode 910Episode 1011Episode 1112Episode 1213Episode 1314Episode 1415Episode 1516Episode 1617Episode 1718Episode 1819Episode 1920Episode 2021Episode 2122Iran's Nuclear DealIn 2015, Iran agreed a long-term deal on its nuclear program with a group of world powers known as the P5+1 - the US, UK, France, China, Russia and Germany. Our World reports on the process that led to the agreement.23Episode 2324Episode 2426Episode 2627Episode 2728Episode 2829Episode 2930Episode 3031Episode 3132Episode 3233Episode 3334American AddictionMore Americans die from drug doses than car crashes or gun fatalities. The majority of the deaths involve the use of heroin or prescription painkillers. Over the past year, Ian Pannell has followed a number of addicts as they try to kick the habit.35Episode 3536Episode 3637Episode 3738Episode 3839Columbine: A Killer in the FamilyOn the 20th April 1999, two teenagers walked into their High School in Colorado armed with guns, bombs and grenades and killed 12 fellow students and a teacher, before taking their own lives. The tragedy had a seismic impact on America, the murderers cited as an inspiration by subsequent killers. Now, for the first time, Sue Klebold, the mother of one of the shooters, talks to Kirsty Wark about trying to come to terms with what happened at Columbine High School and her efforts to raise awareness about children's mental health issues.Season 1Season 2Season 5Season 6Season 8Season 9Season 11Season 12Season 13Season 14Season 15Season 16Season 17Season 18