President Obama and Afghan President Hamid Karzai greet each other during a May 20 meeting at the NATO Summit in Chicago. Karzai is in Washington, D.C., this week to meet Obama and other senior U.S. officials.
Pablo Martinez Monsivais/AP
A supporter of Venezuela's President Hugo Chavez holds a heart-shaped sign that reads in Spanish "I vote for Chavez!" and a picture of Chavez outside the National Assembly in Caracas over the weekend. On Thursday, Chavez is scheduled to be sworn in for a fourth term. Government officials are suggesting the ceremony could be delayed as the president recovers from cancer surgery in Cuba.