Goodreads asked Marc Liebman:

Where did you get the idea for your most recent book?

Marc Liebman I'd been wanting to write a book about chasing terrorists in Europe. I lived in West Germany in the fifties and sixties at the height of the "power" of organizations such as Baader-Meinhof, the Red Brigades, etc. Despite the fact that West Germany was a democracy, there were still many who fondly remembered the "good old" days under Hitler. Sooo, I combined the two, added in a does of the East German secret police - Stasi, the KGB and Fatah for good measure and out popped the plot for RENDER HARMLESS.

flag