> "if you can call the police or get the authorities to intervene... then it's not slavery"
there are parts of the US where it's very difficult to get the police to intervene. I work (indirectly) with a group that helps women and children escape from forced polygamy in groups like the FLDS, AUB, Kingston, and similar; in quite a few areas the local police are "true believers" who won't investigate members of their own group, and in fact who will work to bring escapees back to a situation that is fairly described as "slavery".
Only point I wanted to make is that you still have the option of calling in the Feds. There are no Feds in certain places. Or the "Feds" are weak or corrupt. Maybe even both if you are unlucky enough. I'm talking about being in a situation where there is no way out not only for the abused... but even for those who might want to help. There is LITERALLY... no legal recourse. In your work... you have legal avenues outside of the local police. That's my point.
The problem is that embassies usually are protected spaces where the host country police cannot intervene, the embassy personnel is under diplomatic immunity and the "worst" punishment the host country can deliver is declaring the offender a "persona non grata", but this is a diplomatic affront of the highest severity itself.
No one risks international relationships for a child or a woman.
edit, as I see some downvoting: that last sentence was not meant like I'd support that system. It's just a description how the world works.
there are parts of the US where it's very difficult to get the police to intervene. I work (indirectly) with a group that helps women and children escape from forced polygamy in groups like the FLDS, AUB, Kingston, and similar; in quite a few areas the local police are "true believers" who won't investigate members of their own group, and in fact who will work to bring escapees back to a situation that is fairly described as "slavery".