You are being very generous to the yanks there tabby that they would have any idea where Down was. They generally wouldn't have a notion.
When it comes to knowledge or understanding of Ireland or the troubles by ordinary people (non-irish connected or historians or journalist) virtually nobody I have ever met outside Ireland or GB has any idea of what went on or the make up of the divide.
I thought the yanks were mis-informed until I met Australians who seem to have inherited a 1920's British view of Ireland. My woman's aunt said she didn't go to Ireland on a tour of Europe baca use of the war, in 2003/4.