US concentration camp for Japanese descent citizens, photographs by Dorothea Lange, long held top-secret
https://anchoreditions.com/blog/dorothea-lange-censored-photographs
Dorothea Lange’s Censored Photographs of FDR’s Japanese Concentration Camps — Anchor Editions

The military seized her photographs, quietly depositing them in the National Archives, where they remained mostly unseen and unpublished until 2006.

Anchor Editions