From PBS - The History Detectives: Special Investigations team brings cutting edge tools to some of our biggest historical enigmas, asking probing questions behind iconic mysteries from America's past. Three investigators team up to solve each case: Wes Cowan, an independent appraiser and auctioneer; Kaiama Glover, professor at Barnard College, Columbia University; and Tukufu Zuberi, professor of sociology at the University of Pennsylvania. As the detectives unearth fresh evidence, sift through clues, and crisscross the country in search of answers, they reveal new perspectives on stories we thought we knew.