Reaching the moon was truly a great achievement for mankind. However, it was a very dangerous one, and could have easily ended in tragedy. The danger of Buzz Aldrin and Neil Armstrong being stranded on the moon with no way of getting back to Earth was a very real possibility. Because of this, the president had a speech ready in case that tragedy should happen. Read the eerie memo, and check out the site LettersOfNote for more historically relevant letters.