A review of big-data use will be presented by the White House next week. Civil rights leaders have raised the prospect of employers using data to map where job applicants live. Big data can be used as a tool to discriminate against Americans in areas such as housing and employment, the review says. The review is part of a 90-day study of big data commissioned by President Barack Obama in January 2014 as part of NSA reform efforts. Some cities are using data mining to implement predictive policing, such as Memphis, Tennessee.”]