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TTBOOK: Ethics of Western Aid Dambisa Moyo makes the case that Western aid to Africa has been a disaster. Peter Singer lays out the argument that virtually everyone in America has a moral obligation to give money to help the desperately poor. Jacqueline Novogratz combines capitalism and charity to apply business principles to philanthropy. Abraham Verghese talks about his own experience with the mission hospital system in Africa. Dambisa Moyo was born in Zambia, got a Master's degree from Harvard's Kennedy School of Government and a Ph.D. in Economics from Oxford. Later she worked for The World Bank and Goldman Sachs. Her book is "Dead Aid," and makes the case that Western aid to Africa has been a disaster. She explains why to Anne Strainchamps.

Philosopher Peter Singer has a knack for controversy. His book "The Life You Can Save," lays out the argument that virtually everyone in America has a moral obligation to give money to help the desperately poor. Singer talks with Steve Paulson about extreme poverty and what we can do about it.

Jacqueline Novogratz is the founder and CEO of Acumen Fund, and the author of "The Blue Sweater: Bridging the Gap Between Rich and Poor in an Interconnected World." She tells Jim Fleming how she combines capitalism and charity to apply business principles to philanthropy in a way that benefits people's lives.

Abraham Verghese is a medical doctor and a gifted writer. He teaches at the Stanford Medical School and his latest book is "Cutting for Stone." Verghese reads passages from the novel and talks with Steve Paulson about his own experience with the mission hospital system in Africa.