Book excerpt: "On April 20, 1914, in the small railroad town of Ludlow, Colorado, striking coalminers and state National Guardsmen waged a day-long battle that ended with the burning of a strikers' tent colony. The "Ludlow Massacre," as it is known, was only part of a seven-month war in which at least seventy-five people were killed. In Blood Passion, journalist Scott Martelle explores this largely forgotten American saga of coalminers rising against political and economic corruption, a fight that embraced some of the most volatile social movements of the early twentieth century."--Cover.