Mail will be delivered by guided missiles.

Arthur Summerfield : US Postmaster General
Arthur Summerfield was U.S. Postmaster General under President Dwight D. Eisenhower. He is perhaps best known for a prediction he made in 1959. “Before man reaches the moon,” he said, “your mail will be delivered within hours from New York to Australia by guided missiles. We stand on the threshold of rocket mail.” For anyone waiting for that special package from Amazon, this must sound like a tantalizing proposition — and it was briefly under development.