This document contains an interesting anecdote of which I was unaware. Dr. Richard Garwin was a member of the Committee on Ballistic Acoustic of the National Academy of Sciences whose 1982 report concluded, as he put it, that “recordings from the Dallas Police Department of police microphone signals at the time of the assassination of President John F. Kennedy…were, in fact, not made from a microphone in Dealey Plaza and did not capture the assassination gun shots.”