It's a GREAT email. Firing 18000 people is a much more complicated process than you can imagine and requires very delicate maneuvering in your communication. He has to craft his message with 18,000 different people and their possible interpretation of every word he writes.
Actually it has to talk to all ~100K of the employees. The 18K are obviously the most hard hit, but being at a place that is laying off, even if you still have a job, is stressful, hard, and not much fun. Keeping morale up during this process will be as hard/important as the actual layoffs (at least from a management point of view, not from an impact on lives basis).
