Yup. There are all kinds of entities you are not allowed to do busines with. In fact you usually need to know who the end-user is, etc. However, this gets most

Yup. There are all kinds of entities you are not allowed to do busines with. In fact you usually need to know who the end-user is, etc. However, this gets most important with ITAR and EAR which are items with military or "dual use" applications... https://en.wikipedia.org/wiki/International_Traffic_in_Arms_Regulations https://en.wikipedia.org/wiki/International_Traffic_in_Arms_... https://en.wikipedia.org/wiki/Export_Administration_Regulations https://en.wikipedia.org/wiki/Export_Administration_Regulati...