The new way to protect a location from a radiological attack (for example a radiological dispersal device also know as a dirty bomb) or to protect against the smuggling of nuclear material is to have an always-on, ubiquitous radiation detection and alerts system in place which is networked to allow each detectors data to be shared with a central control room.
The SIGMA Network provides a source of information on the background NORM radiation levels in the location and allows for suspect source to quickly identified and tracked wherever they arise.
Imagine if all the traffic cameras in a city broadcast to separate screens each in a different room, no one could see all the screens in one place. This is the current state of radiation protection, lots of different types of detectors reporting their findings locally and no-one looking at the bigger picture.
Using the SIGMA Network, multiple detectors of different types can be networked together to provide a complete radiological map and alert system across a large area, including D3S NET concealable wearable detectors that can go anywhere a terrorist can lurk.