You gave me a press release from an organizaion that has a history of being deceptive. Why would I, or anybody, take it as a "concrete list?"

The thread of discussion here is that the FBI needs to have broad survaillance capabilities to catch crime before it occurs. The list you gave has verly little support for that in that almost all of the acts in the list were not stopped due to any survaillance, but rather invesigations after the fact. You could assert that they might have been stopped, but that is conjecture.

If you ctrl+f for the word 'plot', you'll find the ones that were disrupted prior to execution. They don't spell it out, for obvious reasons, but generally some sort of surveillance is involved.