New York's storied history of gentrification, gerrymandering and inflation makes affordable housing a convoluted issue.

The office of U.S. Attorney for the Southern District of New York, Preet Bharara, has launched an investigation of health concerns among public housing units and homeless shelters across the city. Cases of elevated blood lead levels and false claims from housing and shelter officials will fall under the scrutiny of federal prosecutors, the New York Times reports.