On Sunday, NewsHour Weekend explores how the Southeast Asian country of Myanmar is gradually shifting toward democracy. After decades of military dictatorship, the nation, also known as Burma, held free elections three years ago for several seats in its parliament, and next month, there will be a nationwide election for all the seats in parliament not reserved for the military, which retains a strong grip on power. Leading the charge for change is Aung San Suu Kyi, the country's most-well known politician and democracy activist. Special Correspondent Kira Kay reports from Myanmar. Also on Sunday, NewsHour Weekend explores the city of Houston's new bus system. In August, city officials dramatically restructured the route of municipal busses in an effort to streamline service that better reflects where people live and work -- all for almost no additional cost. Now, the system is being watched by experts around the country as a possible model for how other cities redesign their public transportation. Special Correspondent Karla Murthy reports from Houston.