If you want the 'drill' to be totally authentic, it has to happen without everyone knowing about it, otherwise, the drill is only minmally effective. Maybe half the parents keep their children home on that day, so the drill only moves 300 instead of 700. So, they weren't tested in moving 'all', but only some.
Maybe the real issue is that we don't all 'trust' the school districts that we are sending our children to. I do i know my school district very well, and know the people who manage the district, as well as a lot of the teachers. So, I have no problem whatsoever.
I also know that if you hold someone accountable, you have to give them the authority. You can't have it both ways.
If I'm held accountable to manage something, then I have to have the ultimate authority to do what I know I have to do, otherwise, you can't hold me responsible.
As far as these emergency drills are concerned, I think that you guys are over reacting. That's my view and I'm staying with it, unless other information becomes available that changes the circumstances. It looks to me like these administrators are trying to be as prepared as possible for an emergency.