Corruption is a daily fact of life for billions of people.
Sometimes it happens in broad daylight. Other times it is done behind closed doors by the rich and the powerful.
But the effects of corruption are usually the same; depriving citizens of public wealth and basic services. And undermining public trust and the rule of law.
Britain's Prime Minister describes corruption as "one of the greatest enemies of progress in our time".
David Cameron gathered a mix of political leaders and civil society groups, aiming to produce a global declaration against corruption.
Can corruption ever be completely stamped out? And how does it affect people around the world in different ways?
Casey Kelso - Advocacy Director at Transparency International
Hamzat Lawal - Cofounder of Follow the Money Nigeria
Alex Cobham - Director of Research at the International Tax Justice Network
Source: Al Jazeera