The New Heroes Episodes on PBS

Part 3 of four showcases “The Power of Enterprise” as it profiles innovative---and decidedly low-tech---social entrepreneurs in Peru, Brazil and Bangladesh. For Peruvian Albina Ruiz Rios, “garbage is money”: she operates small recycling businesses. Maria Teresa “Tete” Leal runs a seamstress cooperative in a Rio de Janeiro slum whose members produce high fashion. And Muhammad Yunis's Grameen Bank makes small loans to the poor in Bangladesh. “Credit,” he believes, “is a human right.”