In more than two dozens cities across the nation Tuesday, an offshoot of the Occupy Wall Street movement took on the housing crisis by re-occupying foreclosed homes, disrupting bank auctions and blocking evictions. Occupy Our Homes said it's embarking on a "national day of action" to protest the mistreatment of homeowners by big banks, who they say made billions of dollars off of the housing bubble by offering predatory loans and indulging in practices that took advantage of consumers. In Atlanta, Occupy Our Homes activists went to the courthouses in three of the area's largest counties, DeKalb, Gwinnett and Fulton,...