>>Back in WW2 we had some movies called “Why We Fight” ... now, imagine for a moment these films, including within them what to them were statements of historical events, were shown (by some time traveller) to Congress in 1933? And said time traveller could prove himself such? Suppose he also showed them Triumph of the Will? What should the isolationists do under those circumstances?
http://freerepublic.com/tag/whywefight/index
We should have laid in a large supply of pig hide to bury terrorists in starting after 9/11.