Engineering360: "Robot swarm could detect nuclear material"

With the addition of a similar array of gamma detectors, this could be useful for reactor safety checks, particularly after unloading spent fuel, and in reactor fuel or waste processing facilities. With a rugged-terrain chassis, it would also be very helpful for finding fallout fragments in recovery operations should, God forbid, we have a nuclear weapon used against us.

What no target bullseye painted on it. If a group is working with nuclear material, they will not allow the inspection.