Leaking...
I see something very wrong with the leak - that is, the author may think twice about issuing a similar memo in the future. It is a serious threat to a safety management system if management can't communicate with staff about safety related issues without confidentiality.
Would you self-report an incident if you thought your report would be leaked by management to the press?
It goes both ways.
If internal safety memos continue to be leaked, they will get the
PR department to write them rather than the safety department.