something many cities like chicago continue to struggle with, even when talking to the police can be a life or death decision joe johns, cnn, chicago. >> dr. salzman, of the medical center, good to see you again, doc. >> good to see you, sanjay. >> we spent some time together last year in chicago. let's take a quick look. >> what goes through your head right now? >> it's fairly routine at this point. we see so many gunshot wounds, business as usual. >> ak-47 gunshot wound in the southside of chicago, sounds like a war zone. >> the young people are getting their hands on these weapons and essentially using them to wage war on the streets of chicago. >> i can't believe we're talking about this, steve. what has changed since then? that was a year ago? >> unfortunately, nothing's changed and actually, it's gotten worse. when you were here last time, it was a month later than we're doing this interview now, we had 189 gunshot wounds and currently