Mexico swears in president amid violent protests

Riot police take position in downtown Mexico City, Saturday, Dec. 1, 2012. Protests against Mexico's newly sworn-in President Enrique Pena Nieto began early Saturday morning with violent confrontations in the streets and protest speeches from opposition parties inside the congress where Pena Nieto formally took the oath of office. Protestors continued through the afternoon, vandalizing downtown businesses, smashing storefront glass windows and setting office furniture ablaze. (AP Photo/Marco Ugarte)