Milwaukee is one of the most segregated metro areas in America, according to the latest census figures. 90 percent of African-American households in the region live in Milwaukee. The numbers also point to huge economic disparities smothering African-Americans who live in the central city. WUWM's Marti Mikkelson opens our series Project Milwaukee: Segregation Matters by examining how the dividing lines became so entrenched. Nate Holton has been working to make life better in Milwaukee’s central