Screen grabs of four separate ads from four different political groups critical of President Obama's handling of Solyndra, the failed solar-panel maker. Clockwise from top left, the ads are from: Americans for Prosperity,, American Crossroads and Crossroads GPS. hide caption

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Former Sen. John Edwards leaves federal court in Greensboro, N.C., Thursday after jurors acquitted him of one felony count and a judge declared a mistrial on five other charges. Sara D. Davis/Getty Images hide caption

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Iran's Bushehr nuclear power plant, shown in this International Iran Photo Agency image from August 2010, was infected by the Stuxnet computer worm — which reportedly was created in the United States. Ebrahim Norouzi/AP hide caption

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George Zimmerman during his bond hearing in a Seminole County, Fla., courtroom on April 20. Gary Green/Orlando Sentinel-Pool/Getty Images hide caption

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