This is a very good piece written by Alan Gardener at 3dPrint.com. He discovers that if the United States Government set aside just 15 days worth of interest payments on their national debt, that they could construct homes for every single homeless person is the nation. Pretty incredible idea for sure. The idea utilizes cheap concrete 3D printing technology that the Chinese are already using to construct homes for those unable to afford traditional houses.

http://3dprint.com/2040/3d-print-hom...-homelessness/

What are your thoughts? Is something like this feasible? It's remarkable how little such a project would add to our already high national debt.