I met a few Vietnamese in the USA and they seem to be all involved in some type of scam including: drug traffic, prostitution, money laundering, etc. I had a German friend a few years ago that hired this Vietnamese girl to work for her. Every Friday she would do her accounting and pay her employees. This Vietnamese girl that she hired and eventually fired for being unreliable, was waiting for her hiding and when my friend opened the door of her office, the Vietnamese girl and her African buck jumped on her and beaten her up, stolen all her money. My friend ended up in the hospital with a few broken bones.