From Fox News:
Duncan is also a fervent supporter of "Renaissance 2010," a plan started by Daley in 2004 to close 500 failing schools permanently or to reopen them as reformed schools within six years.
In 2006, Duncan went on the offensive about the plan, accusing former domestic terrorist Williams Ayers -- now an education professor at the University of Illinois at Chicago and an Obama supporter -- for "failing to embrace" the program.
Ayers and his co-author Michael Klonsky responded to Duncan in an article published in Phi Delta Kappan -- a professional journal for education -- describing him as "the brightest and most dedicated schools leader Chicago has had in memory," but one who began his article by "admonishing us for failing to 'embrace' the board's Renaissance 2010 policy and instructs us on our responsibility to be 'impartial.'"
"People in power desire nothing more than obedience and easy agreement, but this is not the proper role for either reformers or scholars," they wrote.