The original English lyrics of "Radioactivity" ("Radioactivität") are "Radioactivity / is in the air for you and me" [1].
The version with "Chernobyl – Harrisburg – Sellafield – Hiroshima / Stop radioactivity ... / chain reaction and mutation / contaminated population" [2] is a later rewrite. In live performances, "Hiroshima" is now replaced with "Fukushima". The music is also darker than the original.
The version with "Chernobyl – Harrisburg – Sellafield – Hiroshima / Stop radioactivity ... / chain reaction and mutation / contaminated population" [2] is a later rewrite. In live performances, "Hiroshima" is now replaced with "Fukushima". The music is also darker than the original.
[1] https://www.youtube.com/watch?v=MjCxJ8ErpYg
[2] https://www.youtube.com/watch?v=0EBTn_3DBYo