Libraries introduce 3D printers to great acclaim

The United States did not wind up with a housing shortage overnight - several factors have played into the conditions that have created the current market. 

When counties' housing markets price out workers, they lose a population that participates in civic live, volunteerism and community building.

Shelby County, Tenn. offered instruction, connections and mentorship to budding real estate developers to bring fresh ideas and approaches to the market.