By Alina Cho, CNN Critics are calling it nothing more than a "how-to" guide for drug addicts. But New York City's health department thinks a controversial flier that's being handed out to heroin users might just save a few lives. The 16-page pamphlet is called "Take Charge, Take Care: 10 tips for safer use." It’s … Continue reading NYC health dept. needled over 'heroin how-to' flier