Break it up: secession, division, and the secret history of America's imperfect union

Introduction: The disunited states

Part I: A vast, unwieldy machine. Join, or die ; Only united in name ; Constitutional crisis

Part II: Irreconcilable differences. Reign of alarm ; The lost cause of the north ; This unholy union ; Endangered by greatness

Part III: The earthquake comes. Wide awake ; Going, going, gone ; The great red river

Part IV: Return of the repressed. The war was fought in vain ; Divided we stand ; The cold civil war

Conclusion: What is all this worth?