The Amazon Fulfilment Centre prepares for Black Friday this year in Hemel Hempstead, England. Black Friday has now surpassed Cyber Monday as's busiest day. Jeff Spicer/Getty Images hide caption

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A flower is placed inside a bullet hole in the window of Le Carillon restaurant in tribute to the victims of the terror attacks on November 15 in Paris, France. Christopher Furlong/Getty Images hide caption

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Oranges ripen in a grove in Plant City, Fla. Citrus greening, a disease spread by a tiny insect that ruins oranges and eventually kills the trees, has put the future of the state's $10 billion citrus industry in doubt. Chris O'Meara/AP hide caption

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This undated photo shows Rosa Parks riding on the Montgomery Area Transit System bus. Parks refused to give up her seat on a Montgomery bus on Dec. 1, 1955, and ignited the boycott that led to the end of legal segregation in public transportation. AP hide caption

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Every member of the board for the Museum of Political Corruption received this "kickback" button in their information folders at a recent meeting. Jessica Bloustein Marshall for NPR hide caption

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The U.K. coastguard and local boatmen recovered a piece of metal from the sea off the Isles of Scilly in Britain. The debris is likely from the U.S. rocket SpaceX Falcon 9, which blew up after takeoff in June. Handout/Reuters/Landov hide caption

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