Right spot on the money about the War on Drugs.
It provoked untold misery in Thailand by making the illegal trade so lucrative and so easy to get into.
Mass incarceration followed in the 1980s and added an ugly new chapter to Thai history.
The new conditions introduced a smorgasbord of recreational drugs to the country.
In the early '70s, a few years before my time here, the heroin epidemic among American troops in Vietnam and at airbases in Thailand spread to the lower levels of Thai society. By the time I arrived in 1978 it was a common sight to see young addicts nodding off in the middle of the day at markets and slum areas.
That situation had just about ended by the mid '80s mainly due to much higher prices for smack.
Then the more affordable ya-ba stopped being used only for race horses and became the drug of choice for many of the chao bahn with negative consequences that are still being seen today.
It can't be entirely blamed on Western drug culture. The soil was fertile for the seeds sown by the GIs and later the corrupt drug warriors both foreign and domestic.