That was one example, but, iirc` that was the BATF. However, there was a bombing in 1993 on the East Coast where the FBI informant allegedly showed the bombmakers how to make ANFO before they bombed the building with a vanload. Something similar may have happened in OK a couple of years later.
Generally, the guy in the room calling loudest for blowing something up or burning it down was a Feebee or Batfe plant.
Tru dat.