1918: German spy Lothar Witzke was arrested carrying a coded message.
While sources disagree on the exact date, when young Lothar Witzke crossed the international border into Nogales, Ariz., on January 18, 1918 carrying a Russian passport, he was already well-known to the Military Intelligence Division, or MID. He had been under surveillance as a known German spy and was suspected as an accomplice in the sabotage attack on Black Tom Island in New York Harbor that occurred on July 30, 1916. That explosion was described as a thunderous blast, felt as far away as Philadelphia and Maryland. It rocked the harbor, shattered skyscraper windows, and pelted the Statue of Liberty with shrapnel.