I'll have to speak more in generalities for a number of other people who are involved with whistle-blowing.
The unions are a little bit erratic on this situation because they support some whistle-blowers more than others. In my particular case my union supported me tremendously. That may or may not be the case in everybody's situation, but I did get good support.
The other thing that should be noted is that over time things have evolved. Whistle-blowing was something nobody knew, nobody had heard about, 10 to 15 years ago, to the extent they hear about it now. Joanna and I didn't have anybody to talk to at that time; we were absolutely isolated. At least now we can phone each other and others phone us. People have alternatives now, which they didn't have, and they don't always trust their union even. They have to have somebody they can go to and somebody they trust, and trust is a word I use an awful lot.