Mary Bonauto, the lawyer for the couples who challenged the Defense of Marriage Act, addresses the media after a hearing at the U.S. Court of Appeals on April 4 in Boston. John Tlumacki/AP hide caption

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Brian McNamee, Roger Clemens' one-time trainer, leaves federal court in Washington, D.C., on Wednesday. Jacquelyn Martin/AP hide caption

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Totenberg teaches student Letitia Hom in his classroom at Boston University. Totenberg made his debut as a soloist with the Warsaw Philharmonic at age 11. David L. Ryan/The Boston Globe via Getty Images hide caption

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Andy Pettitte leaves the courthouse after testifying Wednesday in the perjury and obstruction trial of former teammate Roger Clemens in Washington, D.C. Win McNamee/Getty Images hide caption

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Andy Pettitte leaves the federal court in Washington, D.C., Tuesday. Pettitte took the stand in the retrial of Roger Clemens on charges that Clemens lied when he told Congress in 2008 that he had never used steroids or human growth hormone. Manuel Balce Ceneta/AP hide caption

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Arizona Gov. Jan Brewer speaks to reporters outside the Supreme Court on Wednesday, after oral arguments on Arizona's immigration law. At left, in brown and wearing sunglasses, is NPR's Nina Totenberg. Charles Dharapak/AP hide caption

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This artist rendering shows Solicitor General Donald Verrilli speaking before the Supreme Court. Verrilli argued Wednesday that Arizona's immigration law steps into federal territory. Dana Verkouteren/AP hide caption

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Maricopa County sheriff's deputies check the shoes of a suspect arrested during a crime suppression sweep in Phoenix in 2010. Sheriff Joe Arpaio's immigration and crime sweep came after hundreds of immigrant-rights supporters delayed the effort with a rally at a downtown jail, in opposition to Arizona's immigration law SB 1070. Ross D. Franklin/AP hide caption

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Former all-star baseball pitcher Roger Clemens leaves the U.S. District Court on Monday after the first day of his perjury and obstruction trial in Washington, D.C. Mark Wilson/Getty Images hide caption

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Former Major League Baseball pitcher Roger Clemens stops to sign a baseball as he leaves the federal courthouse in Washington, D.C., on July 14, 2011, after a judge declared a mistrial in his perjury trial. Jonathan Ernst /Reuters /Landov hide caption

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In this Oct. 11, 2011, photo, Albert Florence sits at his home in Bordentown, N.J., with his attorney, Susan Chana Lask. Florence sued after being strip-searched in 2005 when he was arrested because of a computer error. Mel Evans/AP hide caption

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Linda Dorr (left) and Keli Carender chant along with other demonstrators in front of the Supreme Court on Wednesday. John Rose/NPR hide caption

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Demonstrators both for and against the new health care law turned out on the steps of the Supreme Court on Tuesday. John Rose/NPR hide caption

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