Charles Emmerson was an United States Army Engineer, who served as chief engineer on the construction of the Liberty Defense Perimeter. He credited the liberty tower in Columbus, Ohio for its record-breaking construction time to the efforts of dedicated men and women of the U.S. military, many of whom went months without a day off. The initiative began in early September 1951, when President Grace declared a state of emergency following the so called "spire attack" in the northeast.
When asked by news reporters if he expects the tower to prevent further spire attacks, Emmerson confidently replied: "This tower fires high-velocity concussion shells with a range of over fifty miles. I wouldn’t want to be standing in front of it."