If you do a google ngram search on the phrase, you'll see a blip during WWII and then nothing until 1970. I'm guessing the use from 1970 onwards probably carried the negative connotation we're all familiar with.
If you do a google ngram search on the phrase, you'll see a blip during WWII and then nothing until 1970. I'm guessing the use from 1970 onwards probably carried the negative connotation we're all familiar with.