reply to post by Niall197
Wouldn't a fast moving radiation signature, poorly shielded as it would have to be to make it transportable by air, be quickly and easily discernable
from the background radiation sources normally ignored by "Spies-in-the-Skies"?
And once identified as an anomaly, wouldn't the source of such a fast moving radioactive blip be quickly investigated and destroyed?
Much more effective, I would think, to sheild any stray radiation that might leak from a stolen device under tons of ocean-going steel, perhaps buried
deep in a ship's hold, or even in a water-tight container
under the ship, and slowly drift to the target; following the same path as the
ever-expanding Fukushima cloud.
Far less chance of detection, and thus, less chance of interdiction.