A British company is the latest major multinational that stands accused of massive tax avoidance and depriving one of the world's poorest countries of billions of dollars. The Zambian subsidiary of Associated British Foods has confirmed it paid virtually no tax in the past five years. Such forms of tax avoidance may be legal, but as aid groups are questioning: Is it morally right? And is this a trade worth having? To discuss this, Inside Story with presenter Mike Hanna is joined by guests: Chris Jordan, the co-author of the ActionAid report on Zambia Sugar called 'Sweet Nothings'; Keith Boyfield, a fellow of the Institute of Economic Affairs; and Stephen Barber, a political economist from South Bank University.