Here, from the acclaimed biographer of Mark Twain and Walt Whitman, is the life and world of Lincoln Steffens -- the Columbus of muckraking, the father of American investigative journalism, and a pivotal figure in the history of grassroots radicalism.Justin Kaplan brings alive early twentieth-century America -- a nation in the throes of becoming a great industrial power, a land dominated by big business and beset by social struggle and political corruption...