Social workers in Winnipeg have begun handing out “high-quality” crack pipes and instructions to addicts on the city's streets, part of a harm-reduction strategy put in place by local health officials.The program is modelled on one in Toronto and comes decades after Winnipeg began giving injection-drug users clean needles in return for dirty ones. Although fully approved, the program was launched with no public notice and has only this week become widely known, said Dr. Margaret Fast, a medical officer of health who works for the city. Dr. Fast told globeandmail.com Thursday that she had so far received only two...