Nuclear Engery Search Suport Team
"The Nuclear Emergency Support Team (NEST) is NNSA’s multi-mission nuclear emergency response capability that leverages the Department of Energy’s world-class scientists and technical experts to contend with the Nation’s most pressing radiological and nuclear challenges. NEST is the umbrella designation that encompasses all DOE/NNSA radiological and nuclear emergency response functions,
some of which date back more than 60 years. These include all field-deployed and remote technical support to the Nation’s countering weapons of mass destruction (WMD) operations, including Preventive Nuclear and Radiological Detection (PNRD) and threat-based nuclear search; public health and safety missions, including radiological consequence management; and responses to U.S. nuclear weapon accidents and incidents. Additionally, NEST maintains operational capabilities that enable nuclear forensic analysis of nuclear material used in an improvised nuclear device or interdicted outside of regulatory control. NEST’s motto – “Scientifically Informed, Operationally Focused” – reflects the technical underpinning of its diverse operational missions. "
https://www.energy.gov/nnsa/nuclear-emergency-support-team-nest