Have you gotten a government information reference question that's a bit of a stumper? Did you post the question to the GILs group or GovDoc-L and get some good leads or even a conclusive answer? If so, please consider posting the question here so we all can benefit!
Question: I'm working with a professor wanting recent statistics on the number of children born to U.S. citizens abroad, and can't find this information. I do know parents of a child born to U.S. parents abroad must complete a Consular Report of Birth Abroad form - but can't find where that information is counted separately.
Answer: American Factfinder: (Census 2000 Summary File 3): P21. PLACE OF BIRTH BY CITIZENSHIP STATUS  - Universe: Total population