Mohammed bin Salman al Saud will one day be the king of Saudi Arabia. He already leads the Middle Eastern nation on behalf of his father, King Salman bin Abdulaziz. Widely referred to as MBS, bin Salman wants to modernize his country, letting its people enjoy movies and music, and allowing women to drive and work. But many people think the nation still has a long way to go. Saudi Arabia still spies on its citizens and arrests people for speaking out against the government. Part of the World Leaders series, Mohammed bin Salman al Saud, Crown Prince of Saudi Arabia tells the story of a leader known for both improvements and repression.