Although the radical populist movement that arose in Russia during the reign of Tsar Alexander II has been well documented, this important study opens with questions that haven't yet been addressed: How did Russian radical populists manage to carry out a three-year campaign of revolutionary violence, killing or wounding scores of people, including top government officials, and eventually taking the life of the tsar himself? And how did this all occur under the noses of the tsar's political police, who deployed vast resources and huge numbers of officials in an exhaustive effort to stop the...