The law says the public has the right to read most of the government's e-mail, because open records are critical to democracy.
The law also says the government should not routinely read private citizens' e-mail, because privacy is guaranteed by the Constitution.
Here's how it actually works.
Getting e-mail messages out of the government is one of the toughest tasks for journalists and government watchdogs. Gov. Mark Dayton's office, for example, authorizes the destruction of e-mail messages not considered "records of official transactions." That's been interpreted so broadly by the governor and his predecessor, Tim Pawlenty, that public record requests for the governor's internal e-mails usually turn up nothing.
For other branches of government, requests for e-mail messages are often answered with howls of anguish, with agencies saying they're flummoxed by their e-mail systems and quoting huge prices to search for relevant records.
Meanwhile, law enforcement agencies have the power to read private citizens' e-mail messages without a search warrant, thanks to a law passed 29 years ago, well before most of the country had e-mail.
This paradox brings to mind the U.S. Postal Service's dead letter office.
Since about 1825, letters and parcels that cannot be delivered or returned to sender have ended up in the dead letter office, now called the "mail recovery center." One of them operated on the West Side of St. Paul until 2009. The last one is in Atlanta.