"According to figures contained in a 1972 Supreme Court brief submitted by the Attorney General, there were 1,562 bombing incidentsmost of which involved government-related facilitiesin the United States in the first six months of 1971.12"
A lie? This is from Texas Law and Policy. This is not an MSM article.
Whether activities spilled over into the ‘70s or not does not nullify the title. I pulled excerpts from the reference text. The material does acknowledge 70s. But it started in the 60s.