The headline on the press release indicated that the U.S. Postal Service was taking a big step forward. “Postal Service Progresses With Operational Efficiencies,” it read. But in reality, the U.S. Mail is going backwards.

With its Monday press release, the Postal Service said it must reduce operating costs by $30 billion by 2015 in order to return to profitability, and to reach this goal it has decided that First Class Mail will no longer be delivered within one business day. Delivery times will shift from 1-3 days to 2-3 days.

The change won’t take effect immediately. The Postal Service must g...