On our first night in Saigon, we ran across a little shop that offered for sale, among other things, lots of 60s/70s-era Zippo lighters.
Me: How do you suppose they came to have those?
Meg: I don't want to know.
I was born in 1973 and don't have much of a connection to the Vietnam War (it's referred to as the American War or the Resistance War Against America here)...my dad was in the Navy but served before the war really got going and was never sent to Vietnam. But for some Americans, I could see how being here would be difficult.
Update: I've been told that the Zippo lighters are fake, made especially for the tourist trade. We read about this in our guidebook, but these looked pretty authentic to me. Regardless, a sobering reminder. (thx adam)