Paramedics treat multiple gunshot victims in Chicago in August. Devlin Brown, Chicago Tribune/MCT/Landov hide caption

itoggle caption Devlin Brown, Chicago Tribune/MCT/Landov

Congresswoman Tammy Baldwin greets supporters at a campaign rally for President Obama on Nov. 3 in Milwaukee. Baldwin became the first openly gay candidate to win a U.S. Senate seat. Scott Olson/Getty Images hide caption

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Republican U.S. Rep. Joe Walsh and challenger Democrat Tammy Duckworth before a televised debate at the WTTW studios on Oct. 18, 2012, in Chicago. Charles Rex Arbogast/AP hide caption

itoggle caption Charles Rex Arbogast/AP

An Egraph signed by Philadelphia Phillies baseball player Jimmy Rollins. Egraphs offers an autographed digital picture with a handwritten note and a personalized audio message for $50. Egraphs via AP hide caption

itoggle caption Egraphs via AP

Scorched pastures are spreading across central Illinois and the rest of the Midwest. Technology and techniques developed from previous droughts like the Dust Bowl are helping to save some of today's crops, but there's no substitute for water. Scott Olson/Getty Images hide caption

itoggle caption Scott Olson/Getty Images