Some are military spies,some are economic spies.
Stealing trade secrets from Microsoft or Nvidea...stealing military secrets from a big defense contractor or a member of the military.
Some are enthusiastic spies. "Yes,I'll spy for the glory of our Dear Leader,Mao Tse Tung".
Some are reluctant spies. "Comrade,you will get the following info for us while in the US". "But I just want to go to school". "Comrade,remember...we know where your grandmother lives".
