Terrorist Attack: Avant-Première of an Aftershock

I found this at the Politikstube  who write: 

"Berlin: Fire brigade, Workers' Samaritan Federation, police and the Vivantes hospital in Wenckebachstraße have practised an "encore" terrorist blow. The attack after the attack. Such a scenario has never been practised in Germany before... 

And Politikstube adds, somewhat ironically: 

...The Greens and the Left will, of course protest this "Allahu Akbar" Terror exercise and again speak of 'generalisation'. After all, the terrorist could also be Chinese and shout "Kung Fu Fighting". 

Link ^^^to original video