One-year-old Lavon Massey holds a sign as part of a protest outside the U.S. Citizenship and Immigration Services office in New Orleans on Wednesday. Organizers were drawing attention to the possibility that many undocumented immigrants may not be shielded by the president's executive order. Gerald Herbert/AP hide caption

itoggle caption Gerald Herbert/AP

Activists rally for President Obama to use executive powers to act on immigration. Critics say the president would be going too far. Jacquelyn Martin/AP hide caption

itoggle caption Jacquelyn Martin/AP

Pipes for TransCanada's planned Keystone XL pipeline are stored in Gascoyne, N.D. The U.S. House has voted to approve the proposed project, which would allow crude oil to flow from Canada to the Gulf of Mexico. The Senate plans to vote Tuesday on legislation that would greenlight the project. Andrew Cullen/Reuters/Landov hide caption

itoggle caption Andrew Cullen/Reuters/Landov