Re: prevented the Hindenburg disaster.
In my first house, when renovating, i ripped up linoleum, to find the floor under it lined with old newspapers-- all about the hindernburg disaster--How strange it was to see the coffins, in the temporary morgue, all covered with swastica's -- Pre WWII -- a "neutral" image--

And did we have rockets (fighter planes/ or jets with mounted rockets in WWII?) the germans were working on that technology-- but did the US or England have them? --i though most of the rocket technology was a post WWII developement. (but that is before my time-- so i really don't know.)

Zeppelin's would have been doomed by the increase use and sophistication of Radar-- (which the English vastly improved-- and shared all the technology with us-- so we could manufacture) but the war started long before the US got involved-- and Zeppelin's could have done damage to large parts of europe-- even if England was developing technology to track them.