Last week the Wall Street Journal editors defended D.C.'s voucher program after the Washington Post reported that its days could be numbered. They made the decent point that "The $7,500 voucher is a bargain for taxpayers because it costs the public schools about 50% more, or $13,000 a year, to educate a child in the public schools." It would have been an excellent point, though, had they known and let it be known that in reality the district spends closer to $24,000 per pupil.