Silicon Valley isn’t pushing back on Trump’s immigration crackdown. It should be

President Donald Trump has just expanded the social media surveillance system for immigrants.

Starting in May, the United States will begin collecting the social media handles of all permanent resident applicants. That means anyone seeking a Green Card—including those already living in the United States—must sign up to be digitally surveilled by the government. Marco Rubio also reportedly demanded that diplomats scrutinize the social media accounts of student visa applicants, withholding...