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It's been almost 16 years since this press conference announcing the Younger Dryas Impact Hypothesis. One of the most celebrated discoveries was by team member Luann Becker who reported the discovery of fullerenes at the Younger Dryas boundary, with extraterrestrial helium. When it was her turn to present her findings, she said, “I didn’t bring anything with me today”. So there was no YDB fullerene or 3He data for her to show. Firestone et al (2007) also had no YDB fullerene or 3He data to show, and nothing has ever been published to support this claim. To my knowledge no one has ever had any YDB fullerene or 3He data to show. Coauthors of Firestone et al (2007) refuse to talk about it.