alt Hacker NewsI could only find 4 names:
1 full prof at Vanderbilt with a real research program who has been listed as PI on a bunch of grants. "Top researcher" may be generous, but based on nothing I'd say reasonable description.
The other 3: 1 is a VU Amsterdam PhD who was on a Netherlands Government funded 24-month postdoc in Harvard who's been at VU Amsterdam since 2017. 1 is an adjunct (on leave) prof from Israel who has worked at a few german universities, most recently an Munster (doesn't qualify for the 30% rule). The last resigned over a year ago and has been contracting at a couple UK universities.
This seems less like "Top researchers leave USA" and more like "Typical Academic Bag Chasing"
Its not just what makes the news. There is a cooling effect happening in recruiting international talent.
Science is heavily international, and if people feel like they won't get funding/wont be safe here, they won't come.