I’m old enough to remember when, on May 25, 1961, President John F. Kennedy announced that the United States would land an American on the Moon by the end of the decade. The 1960s were difficult years, with the assassinations of President Kennedy and his brother Robert as well as the Rev. Martin Luther King, Jr. The turmoil continued with race riots in many major cities and, of course, a seemingly endless war in Vietnam.Nonetheless, as President Kennedy had promised, we did manage to land astron...