The document analyzes a slide used in a presentation by the Debris Assessment Team to NASA about damage to the space shuttle Columbia. Dr. Edward Tufte provides a detailed critique of the slide, noting its excessive use of vague language, poor organization of information, inconsistent formatting, and failure to effectively communicate technical details that were crucial to understanding the risks to Columbia. Tufte argues the slide misrepresented key information and that PowerPoint presentations can filter out important supporting information when technical analyses are condensed to fit on slides.