Chris is joined by historian and author Bill Mills on today's podcast. They discuss Bill’s research into German sabotage and espionage operations in the United States during World War One and how that led to Bill’s new book “Agent of the Iron Cross.” To find out more about “Agent of the Iron Cross” and to get a copy, visit the publisher's website here: https://rowman.com/ISBN/9781538182079/Agent-of-the-Iron-Cross-The-Race-to-Capture-German-Saboteur-Assassin-Lothar-Witzke-during-World-War-I Support Secrets and Spies:  Become a “Friend of the podcast” on Patreon for £3 www.patreon.com/SecretsAndSpies Buy merchandise from our shop: https://www.redbubble.com/shop/ap/60934996?asc=u   Subscribe to our YouTube page: https://www.youtube.com/channel/UCDVB23lrHr3KFeXq4VU36dg For more information about the podcast, check out our website: https://secretsandspiespodcast.com/  Connect with us on social media.  BLUE SKY https://bsky.app/profile/secretsandspies.bsky.social TWITTER twitter.com/SecretsAndSpies FACEBOOK www.facebook.com/secretsandspies INSTAGRAM https://www.instagram.com/secretsandspies/ SPOUTIBLE   https://spoutible.com/SecretsAndSpies