FBI officials, warning of a “sharp increase” in activity by the so-called 764 group and other nihilistic violent online networks targeting children, have issued a letter to parents to keep watch over their children.
The FBI’s Open Letter to Parents, Guardians, and Caregivers, dated Feb. 19, said it is now investigating more than 350 subjects around the United States linked to those networks, and that all 56 FBI field offices are involved in the investigation.
