I spent quite a bit of time trying to look for more data to see if something makes me change my mind. I looked at how many conferences are happening in the US. I looked at the agenda to see how many foreign speakers participated. I tried to use AI to help me spot trends.
So far I'm still ok with my initial judgement that the story serves an agenda and is not real news. Or if it's news then it's low quality/poor journalistic excuse for news. Real news should give the facts, it should give the relevant background, it should do so in a way that attempts to be as unbiased as possible, not push a view point, and it should provide enough information that intelligent readers can make up their minds based on evidence. The opposite of news is coming in with an agenda or a thesis and then cherry picking things to support your viewpoint while not providing any information that can serve to falsify your viewpoint.
Maybe if I saw the article in its entirety I'd change my mind, but I doubt it. It seems the journal has an editorial position/agenda here and is seeking to drive that forward. The journal has run many "news" articles on these topics which this article prominently links to:
https://www.nature.com/articles/d41586-025-00859-w "‘Anxiety is palpable’: detention of researchers at US border spurs travel worries" (also worth noting that afaik those "detentions" didn't happen, people were refused entry)
This also doesn't mean that the assertion is false. I don't have enough data to say one way or the other. It is possible that many people are worried to travel to the US. Maybe they're Nature readers. So it is possible that many conferences are cancelled and moved and that is significant. But this is still a political opinion piece and not a news story.