Summary: The 2003 crash of the Space Shuttle Columbia sparked big changes at NASA. That's when its Engineering and Safety Center got established, in order to provide safety oversight and a culture more attuned to safety. Federal Drive Host Tom Temin's guest was the lead guy for the Engineering and Safety Center, and he's a finalist in this year's Service to America Medals program, the Sammies. He's Ralph Roe, Jr., NASA's former Chief Engineer. Learn more about your ad choices. Visit megaphone.fm/adchoices
