STOP THE PRESSES!  This is HUGE!  Barbara Martinez of the WSJ is, as usual, on top of the story:

The New York City teachers union is fighting the release of data that tries to gauge the effectiveness of 12,000 of its members, saying the measuring system is too flawed to make teachers' names public.

The city Department of Education was set to release the data Wednesday, spurred by public-records requests from news organizations, including The Wall Street Journal. But the United Federation of Teachers threatened a lawsuit, and the DOE delayed its plans. A DOE spokeswoman said that unless a court interferes, the city intends to make them public Friday.

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• OCTOBER 21, 2010

Teachers Fight Release of Data

By BARBARA MARTINEZ

http://professional.wsj.com/article/SB10001424052702304011604575564711070572820.html