"There's a high level of difficulty because of the unknowns, " said Gary Snow, a project manager with Washington Closure Hanford, the federal contractor managing the effort to deal with the newfound waste.

WSJ: Toxic Radioactive Find Adds to Hanford Cleanup Woes

Mr. GARY ORFIELD (Professor of Education and Director of Civil Rights Project, Harvard University): You also see that this line has been drawn between city and suburb, as if we were two different civilizations.

NPR: De Facto School Segregation Growing, Study Says

For more on that report, I sat down with Gary Orfield, professor of education and director of Harvard's Civil Rights Project, and John Brittain, chief counsel and senior deputy for the Lawyers' Committee for Civil Rights Under Law.

NPR: De Facto School Segregation Growing, Study Says