Historian: You can't study diplomacy in the U.S. "without grappling with Henry Kissinger"

Historian Doug Brinkley said that while Henry Kissinger — who died Wednesday at the age of 100 — "has more enemies than you can count," "you can't study diplomacy in the United States without grappling with Henry Kissinger."

Brinkley noted that many people blamed Kissinger for the continuation of the war in Vietnam and its expansion into Cambodia and Laos. He also said Kissinger had "a bad anti-democratic record" in dealing with countries like Chile.  

But, Brinkley said, Kissinger "invented the modern concept of realism" in foreign affairs, "or 'realpolitik,' as it was called."