Summary: As it expands additive manufacturing all over, the Defense Department is also adding cybersecurity risk. That's because operators of networked 3D printers aren't always securing the machines or the files that drive them. For more, Federal Drive with Tom Temin turned to Karla Roark, program director for Audit Cyberspace Operations in the DoD Office of Inspector General. Learn more about your ad choices. Visit megaphone.fm/adchoices
