for some reason non Americans always seem to think that SE Asian people won't help the Feds. But as anyone American who has visited the region could tell them, SE Asia is about the last place you should try hiding from the Feds.
edit : Vietnam and the region is very friendly to Americans and even Brits who avoid alcohol (apologies I'm British born with family in both countries and actually casual drinking alcohol is probably the number one error made by British business people when travelling) but the logic behind cooperation with the USA is simply keeping the USA off their regional collective backs. Just consider how much drug trade is at risk if you upset American interests in SE Asia...
edit the 2nd : actually trying to hide anywhere where life itself is cheap is fundamentally the worst error possible to make if you are hiding from existential danger of really motivated people.
2. Vietnamese people drink like fish. What are you talking about?
3. Vietnam does not assist or extradite to the US AFAIK.
It's not that you should hide where life is cheap. You should hide in countries that are sworn enemies of those you are wanted in.
But (as a fellow from another region where Brits and alcohol mix) he might be talking about asshole drunk tourists behaving badly. That's a common pest everywhere young British tourists come in masses to "have a good time", and the locals don't like them much (even if some locals working in tourism make a buck off them).
Then again, the parent writes about "the number one error made by British business people when travelling" -- and business people don't fit this profile.