[genwin]

So we educate them at large expense and then end up living in tents when we're unemployable? Sub-optimal I say.

I'm fine with (b) as long as US taxpayers aren't footing the students' bills. Otherwise I see money wasted. If they are so worthy we'll pay their bills then we should want them to stay. The ones that leave regardless of our welcome mat can provide us with "soft power" back in their home countries.