Few states have been as hard hit by the opioid epidemic as New Hampshire, where more than 1,600 Granite Staters have died of drug overdose since 2012. After several years battling the epidemic, some on the front lines of addiction are pointing to hopeful signs, even while urging vigilance and more investment in treatment and prevention. We take a look at what's working, what's not, and why some are raising alarms about an old scourge: alcohol.