Anti-Trump Status: Confirmed
Summary: Slack CEO Stewart Butterfield has spoken out about the President's travel ban and compares it to "killing everyone" in a family tree.
Details: "My grandfather came from Poland between the wars, at 17, sponsored by an elder sister," he wrote. "Two more siblings made it. Everyone else died. Their parents were shot in the streets and thrown in a mass grave (we believe). Their other siblings died in the camps. Every cousin (and really, everyone they knew) was killed. That whole branch of the family tree snuffed out. And now we want to do this to others. It's bewildering and confusing and terrifying."