Two editorials (1, 2) look at the Myths of the Vietnam war. For the most thorough look at the Vietnam war, however, I can't recommend Noam Chomsky and Edward Herman's Manufacturing Consent enough. The section on Vietnam looks at the facts of the war, and how they were consistantly selected and distorted by the media. The rest of the book is more or less essential for anyone who reads newspapers or watches TV news, too.