Without question, the most important figure in the protest renaissance of the 1960s was Bob Dylan. Like his idol Woody Guthrie, Dylan believed he was "trying to be a singer without a dictionary, and a poet not bound with shelves of books." He had a voice caught in barbed wire, he looked like a cross between Harpo Marx and the younger Beethoven. "What I do," he said, "is write songs and sing them and perform them. Anything else trying to get on top of it, making something out of it which it isn't first, brings me down." Yet his song "A Hard Rain's A-Gonna Fall" was about, or at least inspired by, the 1962 Cuban Missile confrontation; the "Ballad of Hollis Brown" commemorated a particularly bloody killing of a Dakota dirt farmer; "Oxford Town" concerned the ordeal of James Meredith; his recent return to activist singing, "Hurricane," is about...