This article digests an authoritative essay in Foreign Affairs, the salient point of which is that in the near future there will be a huge "sucking" sound as service jobs leave the US, just as manufacturing jobs are. Globalization and electronics are already seeing the loss of phone-bank jobs and such services as computer tech assistants. In the future, the author says, the only jobs that won't be readily out-sourceable will be crane operators, janitors and--maybe--divorce lawyers. (Contract lawyers will of course be outsourced since there's no personal attention to the client.)
A thrilling prospect for college grads: janitor or divorce lawyer. You'll never guess which I'd chose.