From Tunisia to Egypt, ordinary citizens have taken to the streets in a wave of popular uprisings known as the "Arab Spring." At the forefront, the youth of the country, who are seizing the power of new technology and social media to help change history. We take you to Egypt, where you'll meet one such extraordinary person. Then, the world's population is on the brink of reaching an historic seven billion... but the growth isn't evenly distributed. While nearly 80 million people are added every year, many countries -- especially in Eastern Europe -- are actually losing population. One of them, the Former Yugoslav Republic of Macedonia has come up with an inventive plan to try to solve that problem. But will it work?

From Tunisia to Egypt, ordinary citizens have taken to the streets in a wave of popular uprisings known as the "Arab Spring." At the forefront, the youth of the country, who are seizing the power of new technology and social media to help change history. We take you to Egypt, where you'll meet one such extraordinary person. Then, the world's population is on the brink of reaching an historic seven billion... but the growth isn't evenly distributed. While nearly 80 million people are added every year, many countries -- especially in Eastern Europe -- are actually losing population. One of them, the Former Yugoslav Republic of Macedonia has come up with an inventive plan to try to solve that problem. But will it work?