Set ups like the CIA and MI6 are not dilettante organisations. They not only advise the administrations of their respective countries, they also control the narratives that appear in the media. And they are VERY powerful — more powerful than Presidents or Prime Ministers that come and go, though Donald Trump is a handful and keep trampling the petunias that have been so carefully cultivated.
The CIA and MI6 — and Mossad — are engaged in wars of disinformation and in ACTIVE terrorism nearly everywhere in the world.