Their so-called "protest" was just distributing an article already published in the journal of the medical association to which this conference is attached, which probably discussed matters of interest for the attendance, like the future of research financing in this domain.

I can hardly think of a more peaceful form of protest, which only intended to make aware the participants about the content of the article. Those who were not interested presumably refused to take the article copy or did not read it.

Even on HN you can still see claims that USA is a "free" country where anyone can say anything about the government, without consequences. This example shows clearly that this claim is false.

> This might be reading too much in to minor drama at a diabetes conference.

Indeed, my view and perspective is built by a culmination of recent events, not based on a single event. The widespread self-censorship Americans currently engage in (https://news.ycombinator.com/item?id=48434091) is also a large part of it.

I don't have any "index of events" handy that could explain why I think the slope is so evident currently, but based on the ongoing journalistic suppression, individual self-censorship, centralization of control and power in governments and society together with lots of other smaller incidents like this one and others, makes it pretty clear to me at least.

“When Fascism came into power, most people were unprepared, both theoretically and practically. They were unable to believe that man could exhibit such propensities for evil, such lust for power, such disregard for the rights of the weak, or such yearning for submission. Only a few had been aware of the rumbling of the volcano preceding the outbreak.”

— Erich Fromm, Escape from Freedom

It would be wonderful if conference attendees to ADA would stick to the ToS.