The world's wealthy countries often criticise African nations for corruption - especially that perpetrated by those among the continent's government and business leaders who abuse their positions by looting tens of billions of dollars in national assets or the profits from state-owned enterprises that could otherwise be used to relieve the plight of some of the world's poorest peoples. Yet the West is culpable too in that it often looks the other way when that same dirty money is channelled into bank accounts in Europe and the US. In this excellent investigation shown on Al Jazeera, Zimbabwean journalist Stanley Kwenda takes a journey through the murky world offshore banking.