Some of Silicon Valley’s most prominent technology companies, including Alphabet (Google), Apple, Microsoft, Facebook, Uber and Stripe, have co-authored a draft letter formally opposing Donald Trump’s executive order on immigration, arguing that “a blanket suspension is not the right approach”.The executive order, released on 27 January, temporarily banned people from seven Muslim-majority countries from entering the United States, including Syrian refugees and people who had been approved for a visa. The move caused chaos at airports across the country, and left many tech workers unable to travel for fear of having their visas revoked.
https://www.theguardian.com/us-news/2017/feb/02/silicon-valley-letter-opposing-trump-travel-ban