Last year more than 500 people were murdered in Chicago, a greater number than in far more populous cities such as New York and Los Angeles. The prevalence of gun crimes in Chicago is due in large part to a fragmentation of the gangs on its streets: There are now an estimated 70,000 members in the city, spread out among a mind-boggling 850 cliques, with many of these groupings formed around a couple of street corners or a specific school or park. Young people in these areas are like young people everywhere, using technology to coordinate with their friends and chronicle their every move. But in neighborhoods where shootings are common, the use of online tools has turned hazardous, as gang violence is now openly advertised and instigated online, Wired reports.
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