> For any intelligence agency, they can afford to keep and store all of that forever, and later do analysis on it.

At the scale the AI companies are operating at, I think it isn't likely that they are sucking it all in right now.

More likely I think the intelligence agencies will get a real-time live tap into the raw data feed which they will process onsite for interesting things and then if things are flagged, they will log it in the intelligence agency systems.