Wait until THIS starts showing up in American highschools....
If this sort of thing is happening in Berlin what would make anyone think it couldn't happen here. It probably is. In Germany, they have strong social mores. Much more so than here and this type of thing is taking place in the streets...Yeesh, what a mess.
However, their Muslim population is out of control. I lived in a small town without a traffic light and I couldn't spit wihout hitting someone of Muslim persuasion...
Freedom of Speech protected by (a perverted interpretation of) our Constitution.