President Obama's speech in Las Vegas on Tuesday on the country's immigration system was as notable for what was said as for what wasn't. Isaac Brekken/AP hide caption

itoggle caption Isaac Brekken/AP

An undated screen image of footage shot by Al-Kataib Media, showing Denis Allex, a French hostage allegedly held by Somali militants, who was reportedly killed during the failed rescue mission. MAXPPP/EPA /LANDOV hide caption

itoggle caption MAXPPP/EPA /LANDOV

President Obama and House Speaker John Boehner at the White House on Nov. 16. Administration officials say the two men met Sunday to discuss the "fiscal cliff." Carolyn Kaster/AP hide caption

itoggle caption Carolyn Kaster/AP

President Obama shakes hands with with Afghan President Hamid Karzai during their meeting at the NATO Summit in Chicago on Sunday. The summit, which continues Monday, is focusing heavily on Afghanistan's future. Pablo Martinez Monsivais/AP hide caption

itoggle caption Pablo Martinez Monsivais/AP