Can we say paranoia!
"Washington, DC, July 20, 2014 – Forty-five years ago, astronaut Neil Armstrong took his "one small step" for mankind, becoming the first person to set foot on the moon. The program that resulted in that historic event - managed by the National Aeronautics and Space Administration (NASA) - had been a very public one ever since its announcement by President John F. Kennedy in 1961. Even the Soviet government had publicized aspects of its own effort.

But there were also highly secret elements to the U.S. and Soviet schemes, which are the subject of today's National Security Archive posting of previously classified records. The documents focus on three topics - early U.S. military plans, including the possibility of conducting nuclear tests in space, the use of the moon to reflect signals for military or intelligence purposes, and U.S. intelligence analyses and estimates of Soviet missions and their intentions to land a man on the lunar surface."
Soldiers, Spies and the Moon: Secret U.S. and Soviet Plans from the 1950s and 1960s