In this second segment, 93-year-old Marvin Lautzenheiser discusses his time as an FBI field agent in Charlotte, how his team finally deciphered the hollow nickel message after years of numerous failed attempts, how he avoided testifying at Rudolph Abel's trial, and offers up his opinion on the Steven Spielberg movie Bridge of Spies. Learn more about your ad choices. Visit megaphone.fm/adchoices