Joel Rosenburg had the opportunity to visit Auschwitz-Birkenau, a horrible death camp in which over 1 million people died, most of the Jews. At the following link is a video he made of that visit.
We need to ask ourselves if this can be repeated today. I believe it can be, if we are not vigilant. The same insane hatred toward Jews that existed then, exists today. And not just toward the Jews, but also toward Christians and, actually, anyone who is considered an infidel.
It is so sad, really, to see the hatred for the Jews rising up again. We need to pay attention and not allow this to be repeated.