EUROSCIENCE published a statement alerting governments that Trump's ban jeopardises science and innovation

The Executive Order by the US President that prohibits citizens from seven countries, including those having also e.g. a European citizenship, to enter the US jeopardises science and innovation by putting restrictions in place that run counter to core values of the science and education system, is the latest example. See http://www.euroscience.org/news/us-immigration-decree-newest-threat-open-exchange-ideas-people/