One thing most Americans seriously lack when it comes to our foreign wars is a rear-view mirror. What happens to the people and places where America has sent troops or, more particularly, dropped bombs and other ordinance?  Few Americans seem to know or care, a failing which documentarians Jerry Redfern and Karen Coates address in Eternal Harvest, about Laos, where the US dropped more explosives in the 1960s and 70s than we did on Germany in World War 2, and where one lone American is trying to acknowledge what was done in our names.