The difference between 1968, post-Tet, and now, is right before your eyes. Free Republic, thank God for Jim Robinson, is now a bulwark against the left wing that did not exist in 1968. Then, Walter Cronkite and his ilk had free rein to undermine and sabotage the war effort in SEA, turning an oblivious country against not only the war, but the US military personnel serving in theater. There was no forum to confront and contradict the likes of a traitorous John Kerry and the Winter Soldiers who did so much to hurt SEA veterans. Free Republic provides information, analysis, and rebuttal to the anti-American MSM, standing fast for America.
One big difference between Iraq and Viet Nam is that in the latter, the communist enemy had NORTH Viet Nam. The Viet Cong was utterly destroyed but the communists still had North Vietnam from which to carry out the war. The Iraq terrosrists don't have their equivalent of North Vietnam to carry on. They are being killed off with no major replacements.