Book excerpt: In this book, the author brings history alive with the stunning tale of three interconnected-- but little-known-- events in American history. These are the Nazi plot during World War II to destroy the Horseshoe Curve; the FBI's search of the homes of 225 Altoonans on July 1, 1942 as "alien enemies" and the internment by the U.S. of 15,000 German and Italian Americans; and the personal and organizational drama of the founding of the Pennsylvania Railroad and the building of the Horseshoe Curve. This book seamlessly blends information from over 300 actual historical sources including FBI files acquired through the Freedom of Information Act.