I initially dismissed even reading about the Havana syndrome again, but I clicked on the perspective you share as it comes from The Atlantic. In the end, as I presumed, there is nothing concrete, or tangible. In case the closest thesis to a foreign force attack is confirmed, it speaks of only “a small number of cases” being targeted by it. The other agency that changed its reasoning speaks of “[a] chance that a foreign actor has developed a weapon that could have harmed people”, but at the end acknowledges that it was difficult to have been already deployed. Then?