This Company 3-D Prints Entire Houses. Here's How It Could Change the World

Jason Ballard is the co-founder and CEO of Icon, which 3-D prints houses, and has already raised $9 million from Silicon Valley. After completing the first house, the company had over a million requests for units--including from NASA and the U.S. military. Now, Ballard hopes the technology can solve homelessness and save billions of dollars in construction costs.