On June 1, the spying stops. Not all of it, of course, but after the stroke of midnight on that Monday morning the National Security Agency must halt some of the spying programs it launched in the months and years after September 11, 2001. And not because it wants to, either, but because several key provisions of the Patriot Act will expire without congressional action, and lawmakers can’t agree on how much of the surveillance state to keep in place.