Modern Marvels: Star Wars Tech

According to the American Society of Civil Engineers, the aging U.S. infrastructure is in danger of collapse. Learn about a company in Missouri that uses a trench-less technology to rebuild corroded sewer pipes from the inside out while engineers at General Motors Proving Grounds lead the battle against corrosive road de-icing salts. See how a bioreactor in Florida turns mountains of garbage methane gas. Finally, discover how the tiny termite is teaching us how to turn agricultural waste into ethanol at a fraction of the current cost.