Read the excerpt from Hidden Figures.Building an airplane was nothing compared to shepherding research through Langley's grueling review process. "Present your case, build it, sell it so they believe it"—that was the Langley way. The author of a NACA document—a technical report was the most comprehensive and exacting, a technical memorandum slightly less formal—faced a firing squad of four or five people, chosen for their expertise in the topic.Read Mariana’s summary of the excerpt.The process of reviewing research at Langley was intense; authors of both important and unimportant documents had to defend their work before a panel of experts.