I'm sure this will be removed for being somehow inappropriate, but on my first ever day in NY on my honeymoon I experienced two instances of 'racial tension' - I wonder if this is usual, or if we were 'picked on' because we looked like tourists.
The first was when a guy was trying to sell CDs. I said 'no thankyou' and he asked my husband whether I said that because we hated black people, he said it was nothing to do with that. The guy proceeded to shout in the street telling everyone we'd said we hated black people (totally untrue, half my friends are of different ethnicities, but I don't even think about it -- they're just them, plus I'm an anthropologist!!)
Another guy was trying to sell entry for a comedy club. Again I said no thankyou and he said 'well there will be loads of white people there'.
I ended up really upset.... did we just have bad luck. We were in the area around Times Sq.