Edward Calabrese, Professor of Toxicology at the University of Massachusetts, Amherst: Dr. Calabrese recently made the startling discovery that the linear no-threshold or LNT hypothesis, which governs radiation and chemical protection policy today, was founded on a deliberate lie to further a political agenda. According to LNT, there is no safe dose of radiation; the known deleterious effects of very high dose levels, under LNT, can be extrapolated linearly down to a zero dose.