File:Atom bomb drill at school in Los Angeles, Calif., circa 1951 (cropped).jpg
![File:Atom bomb drill at school in Los Angeles, Calif., circa 1951 (cropped).jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/e/e8/Atom_bomb_drill_at_school_in_Los_Angeles%2C_Calif.%2C_circa_1951_%28cropped%29.jpg/472px-Atom_bomb_drill_at_school_in_Los_Angeles%2C_Calif.%2C_circa_1951_%28cropped%29.jpg?20231015140903)
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