"One agency, which the officials did not name, determined that it was 'unlikely' that a foreign actor was at fault, a slightly less emphatic finding..."

"... that did not appreciably change the consensus. One agency abstained in its conclusion regarding a foreign actor. But when asked, no agency dissented from the conclusion that a foreign actor did not cause the symptoms, one of the intelligence officials said.... 'There was nothing,' the official said. This person added that there was no intelligence that foreign leaders, including in Russia, had any knowledge of or had authorized an attack on U.S. personnel that could explain the symptoms."

I'm reading "'Havana syndrome' not caused by energy weapon or foreign adversary, intelligence review finds/After a years-long assessment, five U.S. intelligence agencies conclude it is 'very unlikely' an enemy wielding a secret weapon was behind the mysterious ailment" (WaPo).

Some attempts to allay suspicion stimulate suspicion. I wonder what else does "not appreciably change the consensus." I remember when "consensus" used to feel reassuring.

The intelligence assessment also examined whether an adversary possessed a device capable of using energy to cause the reported symptoms. Of the seven agencies, five determined that it was “very unlikely,” while the other two said it was “unlikely.”

But what did cause the symptoms? Is every possible cause is unlikely? If so, the unlikely causes remain in play, because something caused them.

“There are multiple possible explanations for the apparent discrepancy between the failure to identify a malefactor and the plausibility of directed energy as a mechanism. One should not necessarily discount the latter,” [said David Relman, who headed a National Academies of Sciences, Engineering and Medicine panel that reached a similar conclusion]....

Representatives and lawyers for people suffering with symptoms lambasted the new report as incomplete and opaque....

[T]he final intelligence report found that medical experts could not attribute the symptoms to an external cause separate from a preexisting condition or environmental factors, including conditions such as clogged air ducts in office buildings that could cause headaches, the officials aid.... 

Secretary of State Antony Blinken... has long doubted that personnel are suffering from mass hysteria or some psychogenic event, officials have said. Previous investigations, notably by the FBI, had raised the possibility that the symptoms had a psychological origin, not a physical one, outraging many sufferers who felt their pain had been marginalized and their claims not taken seriously by medical personnel....

So it seems the real conclusion is that it's a psychological problem, but they're afraid to say it directly. Look what happened to Spratlen:

[In 2021], the State Department’s top official overseeing cases, Ambassador Pamela Spratlen, left her position after six months amid calls for her resignation. Spratlen had held a teleconference with sufferers who asked about the FBI study that determined that the symptoms were psychogenic.

It seems they've retreated to tactfulness, but it stirs up suspicion that they are hiding something. I'm giving this post my "propaganda" tag, because that's what this is, isn't it? Not very effective propaganda, but maybe it's the best they can do.