'Search for the Underground Railroad'Because of its clandestine nature, much of the history of the Underground Railroad remains shrouded in secrecy so much so that some historians have even doubted its importance. After decades of research, Tom Calarco recounts his experiences compiling evidence to give credence to the legend's oral history in upstate New York. As the Civil War loomed and politicians from the North and South debated the fate of slavery, brave New Yorkers risked their