This book is a documentary account of the largest trials in modern US history on charges of American citizens committing ordinary and criminal-political crimes. It introduces the reader to the original materials of criminal cases about armed attacks and murders, organization of explosions and kidnappings, anti-government conspiracies and atomic espionage. Political passions and legal discussions raged around these cases. Along with professional lawyers, prominent political and government figures took part in them: scientists, senators, ministers, presidential candidates, US presidents. For a wide range of readers.