For all the good aspirin can do in preventing second heart attacks and strokes, taking it daily can boost some risks, too — of ulcers, for example, and of bleeding in the brain or gut. iStockphoto hide caption

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The ill-fated Sultana in Helena, Ark., just before it exploded on April 27, 1865, with about 2,500 people aboard. Most were Union soldiers, newly released from Confederate prison camps. Library of Congress hide caption

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Chief Justice John Roberts (from left) and Justices Anthony M. Kennedy, Ruth Bader Ginsburg, Stephen G. Breyer and Sonia Sotomayor at the State of the Union address earlier this year. Mandel Ngan/AP hide caption

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A woman walks past a memorial for some of the victims who are said to have died at the hands of the serial killer dubbed the "Grim Sleeper." Mark Ralston/AFP/Getty Images hide caption

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An artist's sketch of Colorado theater shooting suspect James Holmes, from an April 2013 court appearance. Bill Robles/Reuters/Landov hide caption

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Police carry a detained man to a waiting police van after a march to City Hall for Freddie Gray, on Saturday. Authorities say 34 people were arrested in the protest over Gray, who died in police custody last week. Alex Brandon/AP hide caption

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Regatta participant Robert Luiten of Mobile, Ala., right, rejoices on learning that his son, Leonard Luiten, was found after their boat capsized in a storm on Saturday, in Dauphin Island, Ala. The Coast Guard is still searching for five missing sailors. Mike Kittrell/AL.COM/Landov hide caption

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