The starting point is obviously that when crown servants go abroad, they are directly serving Canadians, whether it be in trade, in a consulate, in immigration, in development assistance, in our military, or in anything like that. The nature of the work they do has a very direct connection to what the government is doing.
The second area, as I have mentioned, concerns those who are deemed residents for tax purposes. They pay Canadian taxes, which for many expatriates is simply not the case, for understandable reasons.
The third area--and this is where you really get the distinction between short-term expatriates and longer-term expatriates--is that generally people rotate in and out of Canada, so they will typically be abroad for three or four years, come back for three or four years, and go abroad again. So there is that ongoing connection to Canada. Those are some of the areas where, in general, there is the greatest difference between a crown servant serving abroad and an expatriate, whether working for a company or an international organization.