The U.S. school system needs one million more teachers of color to close gaping diversity gaps between students and classroom educators.

In an email sent out to students' families Sunday night, Princeton City Schools Superintendent G. Elgin Card said the threat, first received by one of the district's elementary school administrators, was not credible. The Oak Hills Local School District told families the same thing in a message.

The district has long hosted routine vision screenings on school campuses. Screenings can alert parents to a problem, but unlike complete eye examinations offered at the Parkview clinic, kids don’t leave them with new glasses.

Superintendent Tony Watlington said he and other district officials are trying to signal to state and city policymakers that "we are being good stewards of the public tax dollars," in the hopes of securing increased funding in this coming year's appropriations process.