Part 28 of a series reassessing the documentary record behind the 1933 Magenta narrative. TL;DR Britain set up a secret Flying Saucer Working Party in August 1950. It reviewed British sightings and drew on American investigations. Its June 1951 report proposed ordinary explanations and recommended ending investigations “unless and until some material evidence becomes available.” Several of its own case explanations remained tentative. The report informed the August 1952 answer to Churchill. H...