The author, Alex Wellerstein, will blog more about this topic and these related: https://blog.nuclearsecrecy.com https://blog.nuclearsecrecy.com The FOIA requ

The author, Alex Wellerstein, will blog more about this topic and these related: https://blog.nuclearsecrecy.com https://blog.nuclearsecrecy.com The FOIA request files he obtained and on which he based his article (and will also be among the sources of his upcoming book) are still unpublished, but he already published on his blog a sample: https://blog.nuclearsecrecy.com/wp-content/uploads/2019/12/Wheeler-FBI-file-extracts-1953.pdf https://blog.nuclearsecrecy.com/wp-content/uploads/2019/12/W... "a short (24-page) excerpt from Wheeler’s FBI file" There you can see some copies of the letters directly signed by John Edgar Hoover, probably typed on IBM Executive A with a beautiful proportional font, even in 1953. The blog is worth reading for those who are interested in the topic, and also the upcoming book.