From left, Sen. Jeff Flake, R-Ariz., Sen. Chuck Schumer, D-NY, Sen. John McCain, R-Ariz., and Sen. Michael Bennett, D-Colo, arrive at a news conference after their tour of the Mexico border with the United States on Wednesday in Nogales, Ariz. The senators are part of the "Gang of Eight," a larger group of legislators collaborating on changes to immigration. Ross D. Franklin/AP hide caption

itoggle caption Ross D. Franklin/AP

Sen. Marco Rubio, R-Fla, is among a bipartisan group of eight senators who this week announced a plan to overhaul the nation's immigration laws. Charlie Neibergall/AP hide caption

itoggle caption Charlie Neibergall/AP

Air interdiction agent Jake Linde in 2010, on the U.S.-Mexico border in Arizona. John Moore/Getty Images hide caption

itoggle caption John Moore/Getty Images

Workers in the Georgia secretary of state's office have fallen behind on licensing applications for nurses. Jim Burress/WABE hide caption

itoggle caption Jim Burress/WABE

Father Mina celebrates the Christmas Nativity Liturgy, the start of Christmas, at the Coptic Orthodox Church of St. George on Jan. 6 in Brooklyn, N.Y. Coptic churches around the country have witnessed a surge of Christians fleeing Egypt since the start of the Arab Spring. Spencer Platt/Getty Images hide caption

itoggle caption Spencer Platt/Getty Images

South Dakota Sen. John Thune waves to delegates during the Republican National Convention in Tampa, Fla., on Wednesday. J. Scott Applewhite/AP hide caption

itoggle caption J. Scott Applewhite/AP