> 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.