Multiple crews work to restore power after a winter storm on Thursday that brought down lines in Fairburn, Ga. Friday night's small quake was the latest event to rattle nerves in the region. John Amis/AP hide caption

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This image provided by the Orangeburg-Calhoun Regional Detention Center shows Justin Bernard Singleton, 19, of Charleston, who is charged with murder in the death of university student Brandon Robinson. Uncredited/AP hide caption

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Democrat Elizabeth Colbert Busch and former South Carolina Gov. Mark Sanford debate for the South Carolina 1st Congresional special election in Charleston, S.C., on Monday. Randall Hill/Reuters /Landov hide caption

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Sen. Lindsey Graham of South Carolina voices his opposition to President Obama's choice of former Sen. Chuck Hagel of Nebraska as secretary of defense, on Capitol Hill last week. J. Scott Applewhite/AP hide caption

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Mark Sanford, seen at the GOP convention last summer in Tampa, Fla., saw his career as South Carolina's governor implode in 2009 when he admitted to an extramarital affair. Chip Somodevilla/Getty Images hide caption

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U.S. Rep. Tim Scott smiles during a news conference announcing him as Jim DeMint's replacement in the U.S. Senate at the South Carolina Statehouse on Monday in Columbia. Rainier Ehrhardt/AP hide caption

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Gov. Nikki Haley named Rep. Tim Scott (R-S.C.) to replace retiring Sen. Jim DeMint. In this file photo, Scott makes brief remarks after a meeting with Treasury Secretary Timothy Geithner at the U.S. Capitol on June 2, 2011. Chip Somodevilla/Getty Images hide caption

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Former House Speaker Newt Gingrich participates in the Republican presidential candidate debate in Charleston, S.C., Thursday. David Goldman/AP hide caption

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GOP presidential hopeful Newt Gingrich addresses the South Carolina Chamber of Commerce on Tuesday in Columbia, S.C. The state holds its primary on Saturday. Paul J. Richards/AFP/Getty Images hide caption

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Republican presidential candidate former U.S. Sen. Rick Santorum speaks to supporters after announcing that he was endorsed Saturday by the evangelical Christian leaders group. Mark Wilson/Getty Images hide caption

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Former Massachusetts Governor Mitt Romney greets supporters during a campaign stop at Cherokee Trikes and More in Greer, S.C. on Thursday. BRIAN SNYDER/Reuters /Landov hide caption

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