The Chicago Teachers Union and some local school council members have joined in a lawsuit to try to block Chicago Public Schools from closing and overhauling 17 of the city's worst-performing schools.
They want a judge to step in. Their argument is that the turnaround efforts discriminate against African-American students because the plans "disproportionately target" those students' schools.
That's an interesting argument to make. In Chicago, 91 percent of the public school students come from minority families. Most of the students in the 17 schools slated for turnaround or closing are from minority families.