Originally Posted by "pattern is full"
Any aircraft of US manufacture (or aircraft that contains at least 25% US content) that is exported to another country, and which may contain certain technologies having national security implications. Also applies to such technologies themselves (chip designs, software code), whether aviation-related or not.
That is true of many technologies and products of US origin. However, regulating sales is one thing, clawing back that technology when your opinion of the recipient changes is quite another.
The population of the US expect their government to intervene with the 'Long Arm of Uncle Sam' whenever US interests are at stake. They are posessed with the notion that they have global jurisdiction. Watch any US TV action drama (NCIS and Hawaii 5-0 for example) and you will regularly see armed interventions being carried into other countries with no regard for their sovereignty. It appears to be accepted as the norm.