Public health officials are scurrying to gain a foothold on the opioid addiction crisis. The U.S. Surgeon General estimates 2.1 million Americans struggle with an opioid abuse disorder, creating a crush on treatment centers. Anne Constantino, president and CEO of Horizon Health Services, acknowledges the immensity of the challenge. She also sounds a hopeful note. "I see people getting better every day. I know the treatment works."