Social Media Activity Targeted in Trump Immigration Crackdown

Trump administration plans to expand the collection of immigrants’ social media data will have a chilling effect on speech in the US, privacy advocates warn.

The Department of Homeland Security rolled out a proposal this month to require disclosure of that information as President Donald Trump has promised to deport visa holders who join campus protests. His administration has already carried out that threat by detaining former Columbia University graduate student Mahmoud Khalil, a legal permanent resident, and revoking another student’s visa—both had participated in demonstrations over Israel’s military campaign in Gaza.

Immigrants and temporary visa holders applying to ...