Sen. Mary Landrieu, D-La., chair of the Senate energy committee, spoke Wednesday about getting congressional approval for the Canada-to-Texas Keystone XL pipeline. With her is Sen. Joe Manchin, D-W.Va., a member of the committee. J. Scott Applewhite/AP hide caption

itoggle caption J. Scott Applewhite/AP

Medical workers will test the effectiveness of three new potential Ebola therapies at clinics run by the nongovernmental organization Medecins Sans Frontieres (Doctors Without Borders). Zoom Dosso/AFP/Getty Images hide caption

itoggle caption Zoom Dosso/AFP/Getty Images

Beacon Power President and CEO Barry Brits, at the company's plant in Hazle Township, Pa. He says a loan from the Department of Energy made it possible for his company to develop its flywheel energy storage technology. Jeff Brady/NPR hide caption

itoggle caption Jeff Brady/NPR

Few police departments have required officers to wear body cameras, but that's changing after the events in Ferguson, Mo., this summer. Jim Mone/AP hide caption

itoggle caption Jim Mone/AP

Pedestrians pass the display windows at Bonhams New York auction house. The Mexican government accuses Bonhams of auctioning off artifacts that were stolen from Mexico, and says others that were offered as ancient were modern fakes. Bebeto Matthews/AP hide caption

itoggle caption Bebeto Matthews/AP

This photo of Roy Middleton working underground at the Kentucky Darby mine now sits on the mantel in the Middleton home in Harlan County, Ky. He was killed after an explosion in 2006. Anna Boiko-Weyrauch/NPR/Original photo courtesy of the Middleton family hide caption

itoggle caption Anna Boiko-Weyrauch/NPR/Original photo courtesy of the Middleton family

Workers assemble Volkswagen Passat sedans at the German automaker's plant in Chattanooga, Tenn., on June 12, 2013. The automaker announced a new policy Wednesday that would allow interaction with labor unions at the plant. Erik Schelzig/AP hide caption

itoggle caption Erik Schelzig/AP

State Reps. Barry Moore, Joe Hubbard, Rod Scott and Merika Coleman study a map of the proposed redistricting plan in May 2012 following a meeting of the Legislative Committee on Reapportionment at the Alabama Statehouse in Montgomery, Ala. Dave Martin/AP hide caption

itoggle caption Dave Martin/AP

Senate Republican leader Mitch McConnell of Kentucky walks to his office to meet with new GOP senators-elect at the Capitol on Wednesday. J. Scott Applewhite/AP hide caption

itoggle caption J. Scott Applewhite/AP