Renowned historian Howard Zinn has chronicled centuries of people's struggles against oppression. He joins Bill Moyers to discuss the voices of today's people — facing big interests' outsized influence — and his new film, The People Speak .

Renowned historian Howard Zinn has chronicled centuries of people's struggles against oppression and economic exploitation in his A People's History of the United States and A People's History of American Empire . Zinn joins Bill Moyers to discuss the voice of today's people in the shadow of big interests' outsized influence in Washington. Zinn is a professor emeritus at Boston University and co-editor of the new film, The People Speak , for The History Channel.