As Mexican authorities investigate bodies found in mass graves in southwestern Mexico, activists and families of 43 missing students hold a protest demanding justice for their loved ones who disappeared after clashing with corrupt local police last month.<br/> <br />Hundreds of activists blocked the highway connecting Chilpancingo to Acapulco to protest the disappearances of the university students.<br/> <br />The protesters covered their faces and broke security cameras as they hid their identities from authorities who may be implicated in the disappearances.<br/> <br />The students went missing on the night of September 26 after they clashed with local police in Iguala.<br/> <br />Police infiltrated by local drug cartels are suspected of abducting some of the students, a local security official said, speaking on condition of anonymity.<br/> <br />The security official said suspected gang members had told investigators that police had handed over the students to gang members who later killed them.<br/> <br />Speak
