If you review Dominic Weinsteins catalog of aviation UAP incidents the majority of those reported during the 1940s were military reports.. (just found the link is broken on the NARCAP site, here is a good one -
http://www.ufocasebook.com/pdf/pilotsightings.pdf<CITE> </CITE>)
Unidentified Aerial Phenomena - Eighty Years of Pilot Sightings
Weinstein, Dominique 2001
If you plot the reports you see a bell curve rising steadily that seems to correspond with the fielding of a global military presence and centralized reporting... the numbers definitely increase in 1944-45 and continue upward from there. By the time the USAF was founded in Sept 1947 the curiosity was great enough to motivate the new General of the AF General Schulgen to offer a list of intelligence requirements on flying saucers that included some background as to why the request was being made...
The Schulgen Memo
There really is no question that it was a security issue for all major players of WWII and postWWII so it is consistent with the UKMOD release and Churchill's concerns....
If I were in their shoes and the best technology we had consisted of tubes mounted on plywood with copper wire attached with screws I think I would have handled it the same way....