While on the S-Bahn

Today, a small group of Americans went to visit a technical college. Well it wasn't a "technical college" like we have in the US,but it was close enough and I can't remember it's actual title. While there we got into small groups with the college students and chatted about the diffrences in America and Germany, with topics ranging from the economy to school. In all it was interesting to hear what real german students thought about their school syaytem and economy.
But the interesting part wa on the S-Bahn.

So here we were, a group of American High schoolers and one teacher, just going back to school like normal people. Then an old lady boarded the train. After about one minute of S-Bahn -ing, she gets the attention of one of the students,  looks him square in the eye, and asked him "what do they teach you in America about World War II??"
Well we were all speachless. Obviously, being in Germany WW11 is a bit of a touchy subject. We all just looked at her with out answering, but she was persistence! She asked us if we felt safe here, if we were welcomed, and if "we carried the sorrows if the war". We were all so confused that Frau Whitt had to answer all of the crazy questions she asked.
We still had 3 or 4 stops to go, but in a moment of panic, one kid asked the teacher "hey, isn't this our stop?" And we all rushed off the train. We took about 4 minutes to debrief everyone on what happened, then boarded the next train to Neukölln. All I can say is that lady freaked us all out!