and oddly enough they in turn can do what they want to you - which will usually mean a longish spell in gaol.
von Clausen is not a good example - he's fictional, rather one-dimensional, and his circumstances are exceptional to say the least. In the real world, spying and selling secrets is a dirty, underhand shady business carried out by thoroughly loathsome and dodgy people. Ever met any intelligence types? I have; they're usually weasly rats and/or ruthless bastards who you wouldn't trust as far as you could throw them. I did a bit of work for them in NI when I was stationed there. Want to know about real spying? When we went out for a drink, we were told to keep an eye and ear on anyone and everyone, especially if they took an obvious interest in you. Like it depicts in the "Crying Game," we were warned not to get involved with local girls as we had no way of knowing if they were Fenians or not
which was a shame cos there were some lovely red-haired Irish girls. We had informers, local people who got paid for dishing the dirt on what the Provos were up to. And that's what most "intelligence" work is all about; bribery and blackmail. Makes you feel q unclean.