The outgoing executive director of the Office of Homeland Security Statistics is one of very few federal officials to speak out against the Trump administration’s immigration crackdown.

MSG’s sprawling surveillance system can monitor guests down to the second. Its owners made an exception for the pop star’s rehearsal dinner.

An MSG database tracked and categorized hundreds of celebs, famous Knicks superfans, and even some of Taylor Swift’s wedding guests. Labels included “LGBTQIA,” “DO NOT HOST,” and low to high “risk.”