What did the Pentagon Papers reveal

That the U. S. Had secretly enlarged the scope of its actions in Vietnam war with the bombings of nearby Cambodia and Laos, coastal raids on North Vietnam, as well as Marine Corps attacks, none of which were reported in the mainstream media. You

The papers were released by Daniel Ellsberg.

More specifically, the papers revealed that the U. S. had secretly enlarged the scope of its actions in the Vietnam War with the bombings of nearby Cambodia and Laos, coastal raids on North Vietnam, as well as Marine Corps attacks, none of which were reported in the mainstream media.