I like the edits done by bsmith and bws48. I like the idea you cannot save everyone. Need to push the distributed emergency management approach! More classes and workshops!

Regarding the "we" and "us", I think I understand what you mean. Definitely need the "us" part!

Please do post what you finally come up with, I'm looking forward to see what it's going to be.

Edited to Add:
What about suggesting volunteering in the letter to? People can do things like getting more medical training, etc.