Boarded up homes; distressed neighborhoods -- Chicago is struggling to deal with the fallout of the foreclosure crisis on top of depopulation on the south and west sides. The city is tearing down abandoned properties that are magnets for crime. But what else can be done to reshape troubled areas? We talk with Cook County Commissioner Bridget Gainer, who spearheaded the creation of the Cook County Land Bank, and Marshall Brown, an architect, urban planner and professor at the Illinois Institute of Technology.