Professional attackers were not waiting to follow a Jamiroquai knock-off around during an event whose CCTV footage will be heavily scrutinized.
(See for example (50 years ago) https://www.nytimes.com/1988/11/15/world/the-bugged-embassy-...).
This may be a good incentive to review policies such as full disk encryption and proximity-card workstation lock/unlock but pulling miles of CAT-6 from this building is not a sensible response: defenses _should_ already account for this sort of threat. If purple team has not already "what if"'ed this particular variant of the evil maid problem then that's a serious issue but clearly weak physical security was already a known feature of the threat model.
All this talk from random internets about how "terrible" their infosec is strikes me as a bunch of armchair quarterbacking by people who think they know a lot more than they do... so basically your typical tech worker I guess.
Their incompetence isn't any different than the average person in the work force, and they shouldn't be keeping secrets anyway.
I'm sure some replies and downvotes to this will think I am crazy because they have important secrets like terrorism intel etc, and yes I understand that, but continue to disagree. I believe a nation could function just fine without secrets. It would simply be different. We don't a good job with the secrets anyway.
IMHO, privacy is a key part of negotiation, creativity, and planning. Lack of privacy would make it difficult for them do their jobs well or (more likely) drive them to use unofficial, private channels.
Sometimes a deal or a new idea needs a "safe space" to grow.
I assume you are a programmer (this is HN). Do you think operations at your company would improve if everyone's screen was constantly broadcast to management? Personally, I'd prefer to be judged on my job performance, rather than having some non-engineer decide if I'm doing a good job based on their impression of what's on my screen.
The legislative record and public statements of our congressmen are almost always enough to evaluate their competence.