[Crito]

From your link:

> "This partly reflects racial differences in the drug markets in black and white communities. In poor black neighborhoods, drugs tend to be sold outdoors, in the open. In white neighborhoods, by contrast, drug transactions typically happen indoors, often between friends and acquaintances. If you sell drugs outside, you're much more likely to get caught."

Makes sense to me. I cannot recall ever being offered drugs by a white person while I was walking down the sidewalk. (While hanging out on the beach is another story...)