The difference from Vietnam is that this time there won't be tens of thousands of Americans killed, and the ones that do get killed won't be conscripts. The assumption being that this will mean that the American public won't be too bothered about about what is being done in their name.

A questionable assumption? Let's see.

Over here in the UK, if Blair gets us into it, and it continues for any length of time, I think the level of opposition to it is going to be a lot bigger than Vietnam ever was. At least that time we weren't directly involved.