Douglas Shulman, former commissioner of the Internal Revenue Service (IRS) left, Lois Lerner, the director of the IRS's exempt organizations office, center, and Neal Wolin, deputy secretary of the U.S. Treasury, right, wait to testify at a House Oversight and Government Reform Committee hearing in Washington, D.C., U.S., on Wednesday, May 22, 2013. Lerner, the mid-level IRS official at the center of a controversy over treatment of small-government groups, invoked her right not to testify after reading a statement denying that she had committed any crimes. Photographer: Pete Marovich/Bloomberg via Getty Images
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