You know, I'm not sure whether it's just trolling or if America is some hellish place which those of us who don't live there won't ever know.
I walk around at any time here without any trouble and this is a big city in Germany. Never had any trouble in any of the countries I've been, but I always see people saying that if you walk around at night alone in say, NYC or Los Angeles you'll get stabbed/murdered/sold as a sex slave or whatever.