Problem
In 1967, then-Secretary of Defense Robert McNamara commissioned a highly-classified study of the roots of the Vietnam War; in 1969, Daniel Elsberg, a Pentagon staffer, photocopied thousands of documents and reports from that study; in 1971 Elsberg leaked those copies to major newspapers across America. The Nixon administration tried to prevent the publication of the Top Secret report but lost the legal battle; the report -- soon to become known as "The Pentagon Papers" -- was then published in those newspapers over the ensuing weeks. You can read a Time magazine article from the period detailing the whole story -- the fight to halt publication, what the report revealed, and more -- here:
What does this article reveal about the nature of the Pentagon Papers and what they revealed? What does the article reveal about the Nixon administration's efforts to prevent their publication?