NEST meaning in Military and Defence ?

The Nuclear Emergency Support Team (NEST), formerly known as the Nuclear Emergency Search Team, is a team of scientists, technicians, and engineers operating under the United States Department of Energy's National Nuclear Security Administration (DOE/NNSA). 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. NEST’s responsibilities include both national security missions—particularly countering weapons of mass destruction (WMD) — and public health and safety, including responses to nuclear reactor accidents. NEST's task is to be "prepared to respond immediately to any type of radiological accident or incident anywhere in the world".