https://www.theguardian.com/us-news/2017/sep/01/trump-daca-dreamers-immigration-facebook-letter

Mark Zuckerberg, Sheryl Sandberg and Tim Cook among tech leaders urging president not to end Daca: ‘With Dreamers, we grow and create jobs’

Many of America’s world-leading technology chiefs and dozens of business leaders have sent an open letter to Donald Trump urging him not to kill off the special legal provisions offered to “Dreamers”, people brought to the US illegally as children – in a drastic move widely expected from the White House on Friday.