Video: Nov. 20, 1972 (8:13)

(Monday, November 20, 1972, 10 a.m. to 4 p.m. local time, during the Vietnam War) — Henry A. Kissinger, U.S. President Richard Nixon’s national security adviser, and Le Duc Tho of North Vietnam opened another round of negotiations for a Vietnam cease-fire today in Paris.

Video: Nov. 20, 1972 (at 4:01)