Protecting the mail is the job of the U.S. Postal Inspection Service. Sometimes called the silent service, it’s one of the oldest federal law enforcement agencies in the country. Postal inspectors also safeguard employees and customers from criminal attack and protect the nation’s mail system from criminal misuse.
Now the Smithsonian Postal Museum has opened a new exhibit about the agency. “U.S. Postal Inspectors: The Silent Service” lends a historical viewpoint to the agency’s storied past and highlights some of its most prominent investigations, from mail train robberies in the 1800s to the Unabomber in the late 1990s. The exhibit runs through Feb. 28, 2009.