EVEN street-savvy former gang members are shocked by the spread of heroin to Chicago’s suburbs. Earlier this year, when Roberto Hernández, a Puerto Rican, was in the final stages of preparation of a big push by Gangs to Grace, a church ministry on the west side, to save Latino gang members from lives of violent crime, he explained that white girls from the suburbs go to neighbourhoods even he wouldn’t set foot in to buy heroin. Many of them are as young as 14 or 15. Some prostitute themselves to fund their addiction.