Photo: Institute on Race & PovertyIt’s been more than 50 years since the Supreme Court ruled that segregation was illegal, yet we still live in a country that’s chock-full of racially split neighborhoods (see: New Orleans). Why is integration failing, how does it affect land use, and what do high-tech mapping gadgets have to do with it all? Jon Christensen interviews Georgetown law professor Sheryll Cashin to find out.