The US owes it to the Vietnamese people to clean up the arsenic, but of course they're never going to do that. I know several elderly Vietnamese who developed leukemia after serving in the war.
If you eat rice, please eat white not brown, parboil it with a ratio of 4:1 water to rice, and dump the water afterwards [0].
https://www.sciencedirect.com/science/article/pii/S004896972...