Matt Zullo is a retired U.S. Navy Master Chief Petty Officer who has more than 40 years’ experience in Radio Intelligence, now more commonly known as Communications Intelligence. He holds a Master’s degree in Strategic Intelligence from the National Intelligence University, where he researched and wrote his master’s thesis on the On-the-Roof Gang. He has published the definitive two-volume history about the birth of US Navy communications intelligence along with numerous articles on the On-the-Roof Gang in the Naval Cryptologic Veterans Association’s Cryptolog magazine and on social media platforms. As the world's only quantifiable expert on the subject, Matt has spoken at the 2009, 2011, and 2013 Cryptologic History Symposiums, as well as at several Navy events around the world. He is currently pursuing a master's degree in Screenwriting at the University of York (UK). Matt continues his research into the On-the-Roof Gang as he looks for opportunities to spread the word about these U.S. Navy's cryptologic pioneers.