When Benjamin Franklin was in charge of the mail, letters bound Americans together. For the typical household today, nearly two months can pass before a personal letter shows up. The letter has been largely replaced by email, Twitter, Facebook and the like. (Library of Congress via Associated Press)

When Benjamin Franklin was in charge of the mail, letters bound Americans together. For the typical household today, nearly two months can pass before a personal letter shows up. The letter has been largely replaced by email, Twitter, Facebook and the like. (Library of Congress via Associated Press)