The presidential limousine with President Barack Obama inside, drives past the Metropolitan Cathedral in Mexico City's main plaza, the Zocalo, Thursday, May 2, 2013. Seeking to put a ne

 

              The presidential limousine with President Barack Obama inside, drives past the Metropolitan Cathedral in Mexico City
The presidential limousine with President Barack Obama inside, drives past the Metropolitan Cathedral in Mexico City's main plaza, the Zocalo, Thursday, May 2, 2013. Seeking to put a new spin on a long-standing partnership, Obama is promoting jobs and trade - not drug wars or border security - as the driving force behind the U.S.-Mexico relationship. (AP Photo/Marco Ugarte)