Time to clamp down on the embassies. Nowadays you can do most of it online anyhow.
United States and many other western governments use their own embassy networks for clandestine operations and it is well established fact.
Never gonna happen though
Setting up secure, verifiable communication channel that is available regardless of disaster or other difficulties would be hard.
I understand most people are used to Zoom and equivalents, but observing is different from making decisions at the highest level. I also think that some of the communication is of the kind that you would want to be sure cannot be recorded.