For more than three decades, Andrew Vachss has sought to protect children from the devastating effects of child abuse both as a lawyer who represents children exclusively and as a writer whose dark fiction brings his battle before a wider audience. Most fans know him for his gritty mystery series featuring the enigmatic avenger Burke. He hopes his newest, and very different, novel will get us to take a hard look at what we accept as truth. We talked with Vachss about his life's work and about his newest novel, "Two Trains Running". Guest: Andrew Vachss