"He earned a doctorate at Harvard, joined the RAND Corporation
and began studying game theory as applied to crisis situations
and nuclear warfare. In the 1960s, he conferred on Washington’s
responses to the Cuban missile crisis and North Vietnamese
attacks on American ships in the Gulf of Tonkin.
By 1964, Mr. Ellsberg was an adviser to Defense Secretary
Robert S. McNamara."
— Robert D. McFadden in The New York Times this afternoon.
For McNamara in this journal, see (for instance) Groundhog Day 2006.