US visa changes leave postdocs like us in limbo
Six of us are postdocs from abroad who work in the United States. We are therefore deeply concerned about the latest uncertainties over US visas, announced last month (see Nature http://doi.org/d2h4; 2020). Coming on top of the havoc wreaked by the COVID-19 pandemic (see, for example, Nature 582, 449–450; 2020), the changes mean that researchers' careers are now under grave threat.
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