More importantly: Does a city get anything out of the exercise?
If residential areas are safer than commercial ones, it would seem so.
No injuries have been reported.
Violence is way down, and researchers chalk it up to good, old-fashioned police work.
Our weekly roundup of the most intriguing articles about cities and urbanism we've come across in the past seven days.
In low-income urban neighborhoods, daily exposure to violence is a reality for many young people.
Join in as we discuss how far city governments can go to push people to protect their health.
All balloon flights have been banned until further notice.
Researchers say looters make rational decisions about how far they’re willing to travel to steal what they want.
The People's Community Medics can turn anyone into a first responder.
Let's settle this age-old question right here and now.
This is what happens when a city releases its data.
And in other public-bathroom news, plastic seat covers might be germy and they saved Hitler's toilet.
Homicides were down dramatically in some U.S. cities in 2012, but up in others.
They're both lagging behind their suburban and small city counterparts, according to new research.
In Highland Park, Michigan, a fireman records his work.
Two Chicago communities with similar stories see vastly different outcomes.
The city of San Francisco has now mapped all of its downtown POPOS, and it's ensuring for the first time that residents really have access to them.