American inventor Leonarde Keeler (1903-1949) testing his lie-detector on Dr. Kohler, a former witness for the prosecution at the trial of Bruno Hauptmann.
Wikimdeia image Creative Commons
A nonpartisan, nonprofit, "consumer advocate" for voters that aims to reduce the level of deception and confusion in U.S. politics. The site monitors the factual accuracy of what is said by major U.S. political players in the form of TV ads, debates, speeches, interviews, and news releases.
PolitiFact is a project of the St. Petersburg Times and Congressional Quarterly to help you find the truth in the presidential campaign. Every day, reporters and researchers from the Times and CQ will analyze the candidates' speeches, TV ads and interviews and determine whether the claims are accurate. Use the site's "Truth O Meter" and the "Flip O Meter" to quickly determine a candidate's level of truth or falsehood and see the times candidates have flip flopped. Get the "pants on fire" ratings here.