An offering from the US intelligence community via the CIA, so far only a short video discussion (9 mins):
As part of the Tet Offensive document declassification effort, Intel.gov recently sat down with three Intelligence Community historians—all members of the IC Senior Historians’ Panel—to discuss the Tet Offensive, the IC’s role in the Vietnam War, and the impact of the Tet Offensive on both U.S. public support for the war and on the IC itself. The Tet Offensive has often been called an intelligence failure, but this discussion reveals that there’s more nuance and complexity to the story than that statement allows. Declassified documents, to be released in three tranches in 2018-19, will shed further light on the IC’s role in this critical conflict.
This video is part of a longer discussion around Vietnam and Tet, which will be released in its entirety in the coming weeks.
Link:https://www.intelligence.gov/tet-dec...ied/historians

They comment on the signs something was coming; from the Ho Chi Minh trail watchers and the never-ending flow of deserters. Was Tet a PR defeat, not a policy defeat?

Some documents are already available:https://www.intelligence.gov/tet-declassified