to combat cartels has been through its security forces... ...since 2006, when then-president felipe calderon launched the government's fight against the country's criminal organizations - federal security forces were deployed by the thousands onto mexico's streets. but violence has only gone up since then. and under the current president, enrique pena nieto, kidnappings have reached record levels in some regions. like the state of tamaulipas, just across the us border with texas... we've come to the town of nuevo laredo. this is the headquarters of one of mexico's most violent cartels - the zetas ... we've come to meet raymundo ramos, he runs one of the few human rights groups remaining in tamaulipas. in most of the cases of disappearances that have been brought to raymundo, families believe it's not cartels that are responsible... ...but the government's own security forces. oralia last saw her husband here in their home - it was around 1am and they were sleeping. the marines told oralia and her husband they were misinformed and left. but a few minutes later, they came back. when she went o