Reconstruction January 31, 2019 Mike Leinbach, former space shuttle launch director, led NASA’s reconstruction efforts after the loss of Columbia. In this video, he shares how the agency worked to piece together the found debris to learn exactly what happened during the accident. More Videos Feature Videos Learn about the Office of Safety and Mission Assurance, its disciplines and programs, and much more in these feature videos. Safety Messages Guest speakers deliver the monthly Safety Messages in these live recordings. Knowledge Bytes These short videos provide expert insight on various safety and mission assurance topics. Policy Bytes Policy owners explain recent changes to policies and standards in these short videos. Event Videos Video captures of live events on Safety and Mission Assurance topics.