Richard A. Grenell, Ambassador of the United States of America, today takes a lot of time – three hours – for the documentary „Hitler – how could it happen“. This subject is important to him. He was well informed about many questions of German history and asked intensively. Grenell was on Gleis 17 a few weeks ago and repeatedly takes a stand on questions of Jewish life on Twitter. Grenell comes together with his partner Matt Lashey to the Berlin Story Bunker. Elio Adler from the Werteinitiative made this visit possible.