They didn't answer the question, but I'd guess it's because it rests on their relationship with "partner" organisations. If those companies largely reside in th

They didn't answer the question, but I'd guess it's because it rests on their relationship with "partner" organisations. If those companies largely reside in the US, and if most students can't be expected to get a working visa in the US, then Udacity could find themselves paying for a lot of students' courses themselves, rather than having some "employer of last resort."