This book contextualizes the 1916 San Francisco Preparedness Day Bombing in the broader context of American radicalism and anarchism during the Progressive Era, and introduces students to this underexplored yet characteristic moment in the strained relationship between capital and labor. Interested in class conflict, radicalism, violence, xenophobia, and state repression? Curious about why the US legal system and court of popular opinion often slant rightward? Look no further. Johnson's book on the WWI era's most notorious bombing offers needed context for Americans seeking to understand similar issues today. The past remains prologue. - Peter Cole, Professor of History at Western Illinois University The protracted and brutal violence of the late Gilded Age and early 20th century constituted another civil war in America, as Big Labor and Big Capital fought a running battle over the meaning and future of the nation. Johnson's timely study situates the infamous Preparedness Day bombing within that larger frame adeptly, reminds us that the West was at the center of the maelstrom, and highlights the scapegoated tragedy of Tom Mooney. - William Deverell, Director, Huntington-USC Institute on California and the West