Sharon Mascall follows 18 young Aboriginal men through a new rehabilitation programme at Port Augusta prison in South Australia.

Defecting from North Korea is a dangerous business. It comes at a high price and there's no guarantee of success. Many make the journey to South Korea with the help of brokers who smuggle people along the illegal overland route known as the "Underground Railroad". For Assignment Lucy Williamson meets the brokers who make a living helping people escape North Korea.

BBC Washington Correspondent Jonny Dymond, investigates why America is facing a resurgent threat from violent right-wing groups.

Sharon Mascall follows 18 young Aboriginal men through a new rehabilitation programme at Port Augusta prison in South Australia.

Who was Rafiq Hariri and who might have wanted to kill him. Owen Bennett Jones reports on the life of the man they once called Mr Lebanon.

BBC Washington Correspondent Jonny Dymond, examines why some native born American Muslims are becoming radicalised, and turning their sights on their own country.

This year Russia is marking the 20th anniversary of the collapse of the USSR. Moscow correspondent Steve Rosenberg took a walk down his favourite street to find out how Russians view the past and to hear their hopes for the future.

An extended family in Colombia struck by hereditary and very early onset Alzheimer's is taking part in a new drugs trial that doctors hope will lead to a cure for sufferers worldwide. Bill Law reports.

Will Taiwan's new rapprochement with China bring opportunity, or hand Beijing control over what it sees as a renegade province? Chris Hogg reports.

Ruth Evans reports on a unique dot.com venture providing jobs for the poor.