I hear you RGB, but there are a million ways to get something from A to B, I just don't understand the reason why they would want to have a dry run. Just make a bomb and send it. Bang. That works because they've just proved it. They wouldn't need to adjust any tactics because what happens will be totally out of the blue, and effective.
I'm pretty sure by now that they'll know exactly what the reaction is going to be (useless and over the top but that's not the point).