People shoot their guns at a shooting range near the Crossroads of the West Gun Show in Tucson, Ariz., on Jan. 15. Kevork Djansezian/Getty Images hide caption

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Israeli Prime Minister Benjamin Netanyahu and German Chancellor Angela Merkel held a joint press conference in Netanyahu's office on Jan. 31 in Jerusalem, Israel. Merkel called for a stop to the settlement building, sighting the events in Egypt as a highlight for the importance of furthering the diplomatic process. Uriel Sinai/Getty hide caption

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A horseman falls from a horse, after being gored by a bull during the 2007 Corralejas Bull Festival in Sincelejo, Colombia. William Fernando Martinez/AP hide caption

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An image grab taken from Egyptian state television shows Egyptian President Hosni Mubarak (left) speaking with his new Vice President Omar Suleiman (center) and Chief of Staff Sami Anan during a visit to the military operations center in Cairo on Sunday. AFP/Getty Images hide caption

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Tom Gillian uses a snow shovel to chip ice from his windshield in Denver on Monday. A monster winter storm is revving up in the Rockies and is expected to drop up to 2 feet of snow in some parts of the Midwest and an inch of ice in others. Ed Andrieski/AP hide caption

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Mohammed ElBaradei, the Nobel Peace Prize winner and former chief of the IAEA, is seen here at a meeting marking the first year of his campaign to press for changes within Egyptian politics, in Cairo, Sept. 6, 2010. ElBaradei brought together a coalition of young activists and opposition groups to mark his first year in Egyptian politics. Amr Nabil/AP hide caption

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Motorists navigate the morning rush hour in Chicago. Ford and other major automakers hope to install technology in cars that enables vehicles to communicate with one another to avoid crashes. Scott Olson/Getty Images hide caption

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