93-year-old Marvin Lautzenheiser was the lead cryptanalyst for the FBI team that deciphered the microfilm message contained in the Hollow Nickel (Podcast #168) and was asked to testify at the trial of Soviet spy Rudolf Abel. In this first segment, Marvin discusses growing up during the Great Depression and how a chance question at his college graduation led him to the FBI.  Learn more about your ad choices. Visit megaphone.fm/adchoices