A street vendor fries food for lunch customers in Mexico City on July 10. Mexico has now surpassed the United States in levels of adult obesity, according to the U.N. Food and Agriculture Organization. Ivan Pierre Aguirre/AP hide caption

itoggle caption Ivan Pierre Aguirre/AP

Dressed in the black and neon orange colors of the new transit police, these women are slated to replace a force of notoriously corrupt traffic cops in Mexico State. Edith Chapin/NPR hide caption

itoggle caption Edith Chapin/NPR

Mexican President Enrique Pena Nieto presents his first annual report to the nation during a ceremony before the Congress at his presidential residence in Mexico City on Monday. Omar Torres /AFP/Getty Images hide caption

itoggle caption Omar Torres /AFP/Getty Images

Tlacoyos can be filled with beans, potatoes, mushrooms or cheese and are often topped with grilled cactus, onions, cilantro, and salsa. Jasmine Garsd for NPR hide caption

itoggle caption Jasmine Garsd for NPR