Historian Greg Grandin examines Henry Kissinger's long shadow over American history - from his career sowing discord and selling order, to his strategy of subordinating foreign policy for domestic political gain - and explains how Kissinger's brand of imperial existentialism shaped both modern America's security state paranoia and endless war.

Greg is author of the new book Kissinger's Shadow: The Long Reach of America's Most Controversial Statesman from Macmillan.