Free RTGs, I guess

USSR Sprinkled More Than 2,500 Nuclear Generators Across The Countryside

These units used Strontium-90 (half life: 29 years) for the earlier ones, then Caesium-137 (half life 30 years) and Cerium-144 (half life 285 *days*). Half a century or more later the earlier units should still be kinda warm; those Cerium units will be dead as doornails (though perhaps the decay products might be spooky, not an expert). Probably some exciting weapons potential for those Stronium/Caesium units for go-getters with the gumption to go get ’em.

 

As good an idea as nuclear power is… this sort of thing goes to show what a nightmare a planned collectivist economy can be for the environment. You support socialism not only at your own peril, but everyone else’s.