Mexican President Felipe Calderon, his wife Margarita Zavala and their children look at fireworks explode in the sky as thousands of Mexicans celebrate the 197th anniversary of their independence from

Mexican President Felipe Calderon (L), his wife Margarita Zavala and their children look at fireworks explode in the sky as thousands of Mexicans celebrate the 197th anniversary of their independence from Spain, in Mexico City's main square Zocalo September 15, 2007. REUTERS/Henry Romero (MEXICO)