The gymnasium at San Quentin State Prison, shown in this June 14, 2007, photo, was filled with nearly 400 double-bunked inmates because of crowded conditions. Eric Risberg/AP hide caption

itoggle caption Eric Risberg/AP

Defense Secretary Robert Gates listens to a reporter's question during a news briefing about gays in the military Tuesday at the Pentagon. Charles Dharapak/AP hide caption

itoggle caption Charles Dharapak/AP

Inmates at the Mule Creek State Prison interact in a gymnasium that was modified to house prisoners in Ione, Calif. The U.S. Supreme Court hears arguments Tuesday in a case that pits California's  right to run its prisons against the Constitution's guarantee that individuals behind bars have a right to minimally basic medical care. Justin Sullivan/Getty Images hide caption

itoggle caption Justin Sullivan/Getty Images

Service members handcuffed themselves to the White House fence during an April protest for gay rights. The potential repeal of the "don't ask, don't tell" policy barring openly gay troops from serving raises practical questions about housing and fairness for the Pentagon. Pablo Martinez Monsivais/AP hide caption

itoggle caption Pablo Martinez Monsivais/AP

U.S. Marine Corps Gen. James Amos testifies on Capitol Hill in September. Amos, now the Marine Corps' top officer, told Congress earlier this month that "don't ask, don't tell" should remain the law of the land. Alex Brandon/AP hide caption

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The legacy of U.S. Supreme Court Justice William J. Brennan Jr., shown on April 20, 1972, is spelled out in more than 1,300 legal opinions. John Rous/AP hide caption

itoggle caption John Rous/AP