Because cities tend to go blue and tend to have their problems crammed into a small area, where a single person can observe it. Taking a photo of 10 junkies str

Because cities tend to go blue and tend to have their problems crammed into a small area, where a single person can observe it. Taking a photo of 10 junkies strung out on a city street corner tells a more compelling story than taking a picture of a rural junkie on their porch, then driving 10 minutes and taking another picture of a rural junkie on their porch, and then driving another 15 minutes...