According to reports that rolled in last week, the Educational Testing Service (ETS) has begun training individuals from outside the USA to score TOEFL test taker responses and to serve as scoring leaders.
This seems to represent something of a shift as far as the TOEFL scoring process goes. To date, responses have been scored solely by individuals physically located in the USA (and in possession of a degree from an American university). It is unclear at this time which countries the new raters will be located in.
Update: For a little more confirmation, head over to the ETS Glassdoor page.