[Marcello]

I have no doubt about the bridges were set up for quick demolition. That is pretty basic.
What I have reservations about is the other stuff it has been talked about, such as demolishing the off-ramps etc. In South Korea they have massive concrete blocks ready to be dumped on the roads and tricks like that.But it is all prepared in advance and ready to be operated on short notice. Was something like that done in Germany? I might be wrong but not that I am aware of.