My daughter and a friend, both in their mid twenties at the tie, visited Paris a few years ago. She told me they were walking down a street and turned a corner to find hundreds of Muslim men standing around the street. She immediately told her friend to back up and get out of there fast.
She told me later that she realized that they could both have just disappeared from that street and no one would have known where to find them. She said it was the most scared she had ever been.
.
Wow!