USA - A Doctor for the Poor - For millions of Americans, health insurance is an unaffordable luxury. Fifty million US citizens have none. A public health system exists, but it's only for those below the poverty line. For Dr. Cecil Walkes, that's an outrage. He had to put his wife in a nursing home, and at 76 he's still treating the poorest of the poor in Eastern Texas. The really bad cases are beyond even his means. And increasingly, specialists and hospitals are refusing to treat the needy patients because of the low fees they bring in. Kyrgyzstan: Free from the State Power Grid - The Central Asian state's high mountains are flecked with glaciers and snowfields. Climate change is causing them to melt faster. Mudslides and floods are threatening the population and its power supply. The country is responding to the new challenge with an awareness-raising campaign. And the sun is being harnessed as a clean and reliable energy source. Hospitals in the country are installing solar panels to cut their reliance on harmful diesel generators during power cuts. South Africa - The New Rich of Soweto - Soweto became the symbol of the struggle against Apartheid. Officially, 1.3 million people live here in the township southwest of Johannesburg. Tourists have long discovered the place which now boasts new shopping centers and popular nightclubs. They're the domain of Soweto's new black middle class, people who live in comfortable homes and who want a taste of luxury. They've reached a level of modest prosperity - double-income households like Louisa and Oupa Dhlamimi. She works in school administration, he's a bank employee. And they're staying in Soweto. They want to change the township for the better, for themselves and especially their children.