It was Memorial Day today here in the United States : a somber day to remember our fallen soldiers – and made more so by the cool gray weather we had in Seattle. The TV news tonight mentioned that it is roughly the 40th anniversary of the fall of Saigon in the Viet Nam War, with the last evacuations taking place there on April 29, 1975. Public support for the War had long waned by then : by 1970 only a third of Americans believed that the U.S. had not made a mistake by sending troops to fight in Vietnam.