Wow, at first I thought this might be something out of the NYT archives. These sorts of discussions were being had when it was first introduced in Vietnam, as m

Wow, at first I thought this might be something out of the NYT archives. These sorts of discussions were being had when it was first introduced in Vietnam, as mentioned by the author. It's stunning that this type of concern is still present in something that's been in use for more than 40 years. Very interesting post.