OAXACA, Mexico (AFP) - Mexico demanded that protesters in the southern city of Oaxaca immediately lift barricades and evacuate occupied buildings, as federal forces massed for possible action. Some 70,000 Oaxaca teachers and supporters have been on strike in the city for five months demanding higher pay and the resignation of the state governor. A statement from the Mexican interior ministry demanded "the immediate handover of the streets, plazas, public buildings and private property" taken over by protesters. President Vicente Fox ordered federal police to Oaxaca on Saturday after a US cameraman for the Indymedia independent media website and two...