Remembering an earlier time when a theft unmasked government surveillance

On March 24, 1971, I became the first reporter to inform readers that the FBI wanted the American people to think there was an "FBI agent behind every mailbox." That rather alarming alert came from stolen FBI files I had found in my own mailbox at The Washington Post when I arrived at work the previous morning. ¶ It was the return address on the big tan envelope that prompted me to open it first: "Liberty Publications, Media, PA." I had worked at the Evening Bulletin in Philadelphia before comi...