A stretch of I-85 in southwest Georgia is a proving ground for technologies that could make such roadways ecologically sustainable. Allie Kelly, executive director of The Ray , visits On Second Thought to talk about the road renovations. The lack of affordable housing is a hot topic in Georgia cities. The median home price in Georgia is on track to nearly double from 2012 in the coming years. GPB’s Ross Terrell asked Housing and Urban Development Secretary Ben Carson about gentrification and