Nieto, Rivera and Regina greet thousands of people gathered on the Zocalo, in Mexico City
Mexico's President Enrique Pena Nieto, his wife Mexico's first lady Angelica Rivera (C) and their daughter Regina greet thousands of people gathered on the Zocalo, as Mexico marks the 204th anniversary of the day rebel priest Manuel Hidalgo set it on the path to independence, in Mexico City September 15, 2014. REUTERS/Tomas Bravo (MEXICO - Tags: POLITICS ANNIVERSARY)