This is a wonderful documentary that shouldn’t be missed.
Alan Turning gets all the praise, but Welchman was right up at Turing’s level.
Before Enigma was ever cracked, before there were any Bombes for decoding …
… Welchman was observant enough to notice a crack in the encrypted communications …
… and this allowed Bletchley to have an insight into the German communications system …
… which was vital for assessing the types of communications flowing through it, even though they were all “impossibly” encrypted.
His second major contribution (that we know about), was a special electrical circuit …
… that increased the processing efficiency of the Bombes. What had taken hours and hours previously could be done sometimes within minutes!
Unfortunately, in his later life — just like Turing — he was hounded by an ungrateful and vindictive government.
You see, he wrote a book that revealed some of his initial insights.
And they were still considered state secrets.
He was hounded despite the fact he helped America create a defense communications system that the Soviets — or any other nation — couldn’t match.
He was fired from his job and had his secret clearance revoked.
And was constantly pressured by American and British intelligence agencies.
Instead of getting the recognition and gratitude he was due, he died virtually unknown, just about forgotten, and nearly a broken man.
This should never happen to anyone ever again.