Mexico's incoming President Enrique Pena Nieto waves as he leaves his inauguration ceremony in congressional chambers, in Mexico City, Saturday, Dec. 1, 2012. Pena Nieto took the oath

 

              Mexico
Mexico's incoming President Enrique Pena Nieto waves as he leaves his inauguration ceremony in congressional chambers, in Mexico City, Saturday, Dec. 1, 2012. Pena Nieto took the oath of office as Mexico's new president on Saturday, bringing the old ruling party back to power after a 12-year hiatus amid protests inside and outside the congressional chamber where he swore to protect the constitution and laws of the land. (AP Photo/Alexandre Meneghini)