A Mexican soldier stands guard during an act of incineration of narcotic drugs, in the VII Military Zone, Monterrey, northern Mexico, on Nov. 1, 2012. More than one ton of narcotics were burned on Thursday in the presence of military and federal authorities, according to the local meida. (Xinhua/Victor Hugo Valdivia)

Mexican soldiers stand guard during an act of incineration of narcotic drugs, in the VII Military Zone, Monterrey, northern Mexico, on Nov. 1, 2012. More than one ton of narcotics were burned on Thursday in the presence of military and federal authorities, according to the local meida. (Xinhua/Victor Hugo Valdivia)

Mexican soldiers stand guard during an act of incineration of narcotic drugs, in the VII Military Zone, Monterrey, northern Mexico, on Nov. 1, 2012. More than one ton of narcotics were burned on Thursday in the presence of military and federal authorities, according to the local meida. (Xinhua/Victor Hugo Valdivia)