Which "slave industry" would that be, dear?
There is a fair amount of sex trafficking that amounts to slavery in a number of nations, but the US Feds are not in a position to interfere much in foreign trafficking. That is for their authorities to do. If they want our technological expertise, they can ask for it, and sometimes we do work with overseas law enforcement authorities like Interpol to break up, say, child porn rings. We've actually had some real successes in that area.
Otherwise, you need to be more explicit about what you mean.