I'm kind of surprised that if there was enough plutonium left they were worried about someone taking it, they never recovered it themselves. In the Manhattan project, plutonium was so valuable it made the value of gold look like a doorstop. I guess by the 50s, plutonium would have been available at every corner drugstore then?
Once they had a process to make it and enough to fire off hundreds of tests it probably wasn’t worth to waste time to dig through the rubble and then separate it all out again.
