Debate moderators John Harwood, left, Becky Quick, center, and Carl Quintanilla take the stage during the CNBC Republican presidential debate at the University of Colorado on Wednesday.
Mark J. Terrill/AP
U.S. Air Force Col. William Pitts stands in front of an unmanned aerostat that is part of a new U.S. military cruise-missile defense system during a media preview in Middle River, Md., in December 2014.
President Obama told the International Association of Chiefs of Police Annual Conference in Chicago Tuesday that police should not be scapegoated for the failures of the justice system.
Charles Rex Arbogast/AP