As of Friday over a thousand tech workers had signed an online pledge refusing to work on a database of people “based on their constitutionally-protected religious beliefs”.

The pledge also calls on the people who take it to work

“within their companies and organizations if they discover that unethical misuse of data is happening. And people are pledging to work within their companies to stop it from happening. If they can’t stop it from happening, to engage in responsible whistle-blowing and to speak publicly about it. And, as a last resort, if they are forced to engage in it, to resign, rather than comply.”