Update. "US conference boycott urged after French scientist deported"
https://archive.is/Wxwdg
"Academics say they are increasingly wary of travelling to conferences in the US after a French scientist was deported over text messages critical of Donald #Trump’s cuts to research funding … Space scientist Mark Wieczorek [@mrak], director of research at the Institut de Physique du Globe de Paris, part of CNRS, said the situation was “very troubling” and, despite being a dual US-French citizen, he now would “only go to the US for the case of a family emergency”…Given the French scientist in question is a “permanent researcher employed by CNRS”, it is “unlikely that this person is a radicalised terrorist and it is unlikely that their hatred of Trump is greater than mine as a US citizen,” continued Wieczorek."