Interview subjects

		Barrett Caldwell director, Indiana Space Grant Consortium associate professor of industrial engineering, Purdue University
		Herman Cummins professor of physics City College of New York
		Tony Ingraffea professor of civil and environmental engineering Cornell University
		Bruce Jakosky professor of geological sciences, University of Colorado director of the lab for atmospheric and space physics
		Fred Sacks professor of plant biology Ohio State University
		* denotes factchecker

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