Wiretapping and electronic surveillance in America, 1862-1920

About this book

"Americans have come to realize that many of us may be under surveillance at any time. It all started 150 years ago on the battlefields of the Civil War, where each side tapped the other's telegraph lines. In 1895 the NYPD began to tap telephone lines. In 1910 the dictograph arrived, making electronic surveillance easier still"--