A supporter of the Popular Assembly of Oaxaca (APPO) sits at a barricade near the university in Oaxaca City November 4, 2006. The sign reads, 'Go PFP' in reference to the Mexican federal forces (PFP). Leftists rebuilt smashed barricades and readied firebombs as riot police guarded the center of Mexico's colonial city of Oaxaca on Friday after a new round of violence in a months-long political crisis.
REUTERS/DANIEL AGUILAR