Khun sa was at one time responsible for half of the world’s heroine production in the late 20th century. He surrendered to the Myanmar army disbanded his private military and spent the rest of his life in his mansion in Yangon since Myanmar had no extradition treaty with the us.

https://en.wikipedia.org/wiki/Khun_Sa

Not to everything turning into a political argument

Hospitals still use them because they require less signal. Hospitals are difficult to get good signal due to normally due to how they are built. the multiple buildings built closely to each other and each of them having varying numbers of sub levels

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