Russian President Dmitry Medvedev visits a new military radar facility in Russia's western Kaliningrad region on Nov. 29. He said it showed Russia's readiness to respond to the U.S. missile defense system planned in Europe. Mikhail Klimentyev/AP hide caption

A Predator drone takes off on a U.S. Customs Border Protection mission from Fort Huachuca, Ariz. Ross D. Franklin/AP hide caption

President Barack Obama talks about extending payroll tax cuts on Monday in the White House briefing room. Carolyn Kaster/AP hide caption

This year, Tennessee Tech's $35 million in state funding will go up or down based solely on whether students are succeeding. By Brian Stansberry /Wikimedia Commons hide caption

Former Maryland Gov. Bob Ehrlich (center, in the blue shirt) greets voters outside a polling place in Ellicott City, Md., in 2010. Ehrlich campaign manager Paul Schurick is now facing charges for allegedly discouraging voters from going to the polls on Election Day. Carolyn Kaster/AP hide caption

New research suggests that people who are more creative are more likely to cheat. iStockphoto.com hide caption

Herman Cain, who has since suspended his presidential campaign, greets Newt Gingrich upon arriving at CNN's GOP National Security debate in Washington on Nov. 22. Jim Bourg/Reuters /Landov hide caption

Former House Speaker Newt Gingrich, shown at an event on health care on Capitol Hill this March, founded the Center for Health Transformation. Brendan Hoffman/Getty Images hide caption

This artist's conception illustrates Kepler-22b, a planet known to comfortably circle in the habitable zone of a sun-like star. It is the first planet that NASA's Kepler mission has confirmed to orbit in a star's habitable zone — the region around a star where liquid water, a requirement for life on Earth, could persist. NASA/Ames/JPL-Caltech hide caption

Garcia's fence, which spans several lots and almost an entire block, runs corner to corner. Kate Davidson/Changing Gears hide caption

Afghan President Hamid Karzai calls Monday on the international community to keep up its support for Afghanistan. More than 100 countries attended the conference in Bonn, Germany. Oliver Berg/AFP/Getty Images hide caption

Pakistani students protest the cross-border NATO air strike on Pakistani troops, in a march at the U.S. consulate in Karachi, Dec. 2. Pakistan said it could not attend the Bonn conference on Afghanistan unless its security was ensured. Rizwan Tabssum/AFP/Getty Images hide caption

Howard Tate, circa 1970. Michael Ochs/Courtesy of the artist. hide caption