The USA has cancer, what are some logical approached to do something to effect a cure? Chicago police sergeant: "Tribal warfare" on the streets Chicago police sergeant: "Tribal warfare" on the streets - CBS News (CBS News) CHICAGO - Chicago is in the grips of a deadly gang war. At least 275 people have been killed in the city so far this year and many more have been shot, many of them innocent bystanders to the gang violence. Among the latest victims were 12- and 13-year-old girls shot Tuesday night. They survived. Sgt. Matt Little leads one of the teams in Chicago's Gang Enforcement Unit. There are about 200 such officers in the city-- versus 100,000 gang members. "Almost all the violence we're seeing now is from the gangs," Little said. "When there's a shooting we'll respond to the shooting. We'll figure out where we believe the most likely area for retaliation is and we'll work that area trying to both prevent retaliation and possibly build a case on offenders."