Steve Snyder, author of the award-winning book, "SHOT DOWN: The true story of pilot Howard Snyder and the crew of the B-17 Susan Ruth" makes a PowerPoint presentation at the San Diego Air &Space Museum in San Diego, CA on March 20, 2017. #B-17FlyingFortress #WorldWarII #SteveSnyder #SanDiegoAirandSpaceMuseum #8thAirForce #MilitaryBooks #Aviation #SHOTDOWN