Can segregated school districts be effective?

In Nebraska, on April 13, 2006, a measure was signed into law that calls for the division of Omaha public schools into three smaller districts. Though the law does not expressly dictate the racial makeup of these districts, they are nevertheless racially identifiable. Ernie Chambers, one of the major forces behind the measure (and Nebraska's only African American senator), argues that it will enable ethnic communities to assert control over schools with predominantly minority student populations, and improve student performance. Opponents, however, defend the value of integration and suggest that the measure may violate the federal Constitution's equal-protection clause. On May 15, the National Association for the Advancement of Colored People filed suit, challenging the law and arguing that it "intentionally furthers racial segregation." We're interested in your opinion.