The murders of two women, a mother and daughter, in Ciudad Juarez last week, triggered debate about private security firms that proliferate in the border city...Although the motive behind the killings remains unclear, three men, all private security guards are in custody... [The] private security forces...are largely responsible for watching commercial centers, residential neighborhoods, nightclubs, and maquiladora plants. All are places where young women have disappeared and/or suspected narco-executions and kidnappings have been carried out with impunity. [refers to Border Eagles]