A cordon of police surround the perimeters of the Mexican television network Televisa headquarters as protestors occupy the streets surrounding the network's news division, in Mexico City, Friday, July 27, 2012. Hundreds of protesters have set up a protest camp outside the offices of the media company, saying the broadcaster favored winning presidential candidate Enrique Pena Nieto, promoting his image. The network denies the accusations. The one-day blockade is organized by a student protest movement, union and leftist groups who say they will stay until the end of Friday. (AP Photo/Marco Ugarte)