TransCanada already has begun construction on a southern section of the Keystone XL pipeline. Since it doesn't cross the U.S.-Canadian border, it doesn't require approval from the State Department and President Obama. Sarah A. Miller/AP hide caption

itoggle caption Sarah A. Miller/AP

Interior Secretary Ken Salazar speaks at the dedication for the Southwest's first urban wildlife refuge on the southern edge of Albuquerque, N.M., on Sept. 27, 2012. Salazar has announced that he'll leave his post in late March and return to Colorado. Susan Montoya Bryan/AP hide caption

itoggle caption Susan Montoya Bryan/AP

Matt Damon's character in the movie Promised Land comes to town to convince a landowner to allow a gas company to drill on his property. Scott Green/Focus Features hide caption

itoggle caption Scott Green/Focus Features

A woman walks past a cabana complex pulled off its foundations by Superstorm Sandy in Sea Bright, N.J., in November. Seth Wenig/AP hide caption

itoggle caption Seth Wenig/AP

Dixon has gathered her Nativity collection from many sources around the world. She says this set is made of banana fronds and was given to her by a friend who was a missionary in Nigeria. Jeff Brady/NPR hide caption

itoggle caption Jeff Brady/NPR

Like many other brick-and-mortar retailers, Wal-Mart is trying to attract shoppers increasingly accustomed to online shopping. In one experiment, it's offering same-day delivery in four select markets. Paul Sakuma/AP hide caption

itoggle caption Paul Sakuma/AP

Austin Mitchell walks away from an oil derrick outside Williston, N.D., in July 2011. North Dakota is now the No. 2 producer of oil in the U.S. behind Texas. Gregory Bull/AP hide caption

itoggle caption Gregory Bull/AP

Rep. Roscoe Bartlett, R-Md., at a House Small Business Committee hearing on Sept. 21, 2011. After two decades in Congress, a redrawn district has put his re-election in question. T.J. Kirkpatrick/The Washington Times /Landov hide caption

itoggle caption T.J. Kirkpatrick/The Washington Times /Landov

Former Penn State assistant football coach Jerry Sandusky, shown arriving at court during his trial in June, is expected back in court Tuesday for a sentencing hearing. Gene J. Puskar/AP hide caption

itoggle caption Gene J. Puskar/AP

Franciscan University of Steubenville's Christ the King Chapel seen at dusk in this image taken in 1980, in Steubenville, Ohio. Courtesy of David E. West hide caption

itoggle caption Courtesy of David E. West

A database of mentally ill people barred from buying guns lacks all the records required. Karen Bleier/AFP/Getty Images hide caption

itoggle caption Karen Bleier/AFP/Getty Images

Workers move a section of well casing into place at a Chesapeake Energy natural gas well site near Burlington, Pa., in 2010. Ralph Wilson/AP hide caption

itoggle caption Ralph Wilson/AP

Marietta Perkins falls to her knees across the street from the movie theater on Friday in Aurora, Colo. Authorities report that 12 died during an assault at a midnight premiere of The Dark Knight. Robert Ray/AP hide caption

itoggle caption Robert Ray/AP