Hadley Cantril's study was launched immediately after the broadcast to give an account of people's reactions and an answer to the question, Why the panic? Originally published by Princeton University Press in 1940, the book explores the latent anxieties that lead to mass hysteria. Originally published in 1982. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.