Use of Twitter, Facebook rising among gang members

(AP) -- When a gang member was released from jail soon after his arrest for selling methamphetamine, friends and associates assumed he had cut a deal with authorities and become a police informant.

Treat illegal wildlife trade as serious crime: CITES

Illegal trade in wildlife products like ivory and rhino horn must be treated as a serious crime in order to end the devastating poaching of protected species, the head of UN wildlife trade regulator CITES said Thursday.

Study: Homicide spreads like infectious disease

Homicide moves through a city in a process similar to infectious disease, according to a new study that may give police a new tool in tracking and ultimately preventing murders.

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