“How America took out the Nord Stream pipeline”

I once read (Don DeLillo?):

The John F. Kennedy assassination could not have been a conspiracy, some conspirator would have spoken sooner or later (maybe on his/her death bed).

This is obviously not a lone perpetrator, so the truth will come out.

But it may take decades, e.g.:

https://en.wikipedia.org/wiki/Gulf_of_Tonkin_incident

Maybe not today with the internet and the speed at which this stuff gets out. Things get hacked and documents leak digitally which is way easier than someone breaking into a physical building and riffling through old documents. Additionally as we have seen with Trump, Biden and Pence it appears that the way the administration deals with secret documents can be quite sloppy.

JFK was one of many contemporaneous high-profile political assassinations that share a common theme -- those assassinated were strong leaders that basically opposed the global ambitions of the growing transatlantic military-industrial-white-supremacist complex.

JFK, RFK, Dag Hammarskjöld, MLK, Malcom X, Patrice Lumumba, Thomas Sankara, et al. to just name a few.

When you put it all together in historical context, it seems improbable that these were random unrelated events that just happen to advance the interests of a very powerful class that felt victimized by the end of European imperialism/American slavery and the rise of Communism and the Global South.

Otto Skorzeny is emblematic of the character that was central to this history.

https://en.wikipedia.org/wiki/Otto_Skorzeny

Yes, it seems really hard to keep things secret. I guess it would be easier for a country known to kill journalists (thinking of Russia here, Assange is alive).

And everything is recorded nowadays. (people like Biden are great security risks)

You should look in to how many witnesses "mysteriously" "died."