A house under foreclosure that will soon be auctioned in Las Vegas. The Obama administration's foreclosure prevention efforts were blasted this week in a report from a federal auditor. Mark Ralston/AFP/Getty Images hide caption

itoggle caption Mark Ralston/AFP/Getty Images

John and Nancy Longval say they've had a hard time working with their lender, CitiMortgage, on a loan modification. Chris Arnold/NPR hide caption

itoggle caption Chris Arnold/NPR

John and Nancy Longval are on the verge of getting a loan modification after petitioning their lender, CitiMortgage, for two years. Chris Arnold/NPR hide caption

itoggle caption Chris Arnold/NPR

Some economists want the government to automatically refinance homeowners to prevent further foreclosures. Joe Raedle/Getty Images hide caption

itoggle caption Joe Raedle/Getty Images

The SawStop saw can sense a slight electrical current that human fingers (and hot dogs) create. When it senses the current, the saw triggers a safety brake, which stops the blade in less than 5/1,000th of a second. Courtesy of SawStop hide caption

itoggle caption Courtesy of SawStop