WHAT MATTERS: Why would a law in New York or California help somebody in Texas or Mississippi?

CAHN: Well, first off because of interstate information-sharing agreements, police in one state routinely are helping police in another. It's not hard to imagine how anti-choice officers in New York or California could facilitate out-of-state prosecutions.

But on top of that, we see that where states impose additional privacy protections, rather than creating 50 different versions of the products, companies usually comply with the most stringent privacy protection nationwide.

And so if we make it so that it's illegal for Google and Uber and Lyft to save their data in a way which is vulnerable to a geofence warrant, that won't just benefit New Yorkers. That will likely become a new national standard.