Has DNA testing proved that ThomasJefferson fathered at least one child with one of his slaves, Sally Hemings

Should statistical sampling be used in the United States Census

Has the calculus reform project improved students' understanding of mathematics

Do humans have an innate capacity for mathematics

Does private strong encryption pose a threat to society

Does the addition of fluoride to drinking water cause significant harm to humans

Should xenotransplants from pigs raised at so-called organ farms be prohibited because such organs could transmit pig viruses to patients—and perhaps into the general population

Should the cloning of human beings be prohibited

Historic Dispute : Did syphilis originate in the New World, from which it was brought to Europe by Christopher Columbus and his crew

Is the cost of high-energy laboratories justified

Historic Dispute : Do neutrinos have mass

Do hidden variables exist for quantum systems

Does cold fusion exist

Historic Dispute: Is Earth the center of the universe