A protesting public school teacher from Oaxaca state sweeps outside his tent in the capital's main Zocalo plaza in Mexico City, Friday, Aug. 30, 2013. Teachers' protests that have snarled traffic, ... more 
A protesting public school teacher from Oaxaca state sweeps outside his tent in the capital's main Zocalo plaza in Mexico City, Friday, Aug. 30, 2013. Teachers' protests that have snarled traffic, blocked government buildings and caused the cancellation of sports events in Mexico City have prompted President Enrique Pena Nieto to change the date of his state-of-the-union address. (AP Photo/Eduardo Verdugo) less 
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Associated Press | Photo By Eduardo Verdugo
Sat, Aug 31, 2013 11:38 AM EDT