What does this generation know about Hitler and the Holocaust?

There is a video called "The 180 Movie". It's about a half hour I think. A man is interviewing people in California; asking them what they know about Hitler and the Holocaust. He is making a point by his questions. I don't want to give too much away. WARNING! There are very graphic images/videos of concentration camps from WWII. You may want to avert your eyes and I would not recommend anyone younger than high school watch it without their parents watching first. 

This video was very eye-opening for me and also slightly concerned me about my country's citizens. You will understand better after viewing. I hope I didn't scare you from watching, I just wanted to give you fair warning.