Found in 2 comments on Hacker News
crocwrestler · 2022-04-29 · Original thread
Well, they did have domestic terrorist groups going around setting off bombs on the regular in the 60s and 70s. I was quite surprised to read about it.

https://www.amazon.com/Days-Rage-Underground-Forgotten-Revol...

schoen · 2017-08-06 · Original thread
There is also this kind of amazing book

https://www.amazon.com/Days-Rage-Underground-Forgotten-Revol...

about the time in the early 1970s "when bombings by domestic underground groups were a daily occurrence".

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