It has been six decades since doctors concluded that addiction was a disease that could be treated, but today the condition still dwells on the fringes of the medical community. Only 1 cent of every health care dollar in the United States goes toward addiction, and few alcoholics and drug addicts receive treatment. One huge barrier, according to many experts, has been a lack of health insurance. But that barrier crumbles in less than a year. In a major break with the past, 3 million to 5 million people with drug and alcohol problems — from homeless drug addicts to working moms who drink too much — suddenly will become eligible for insurance coverage under the new health care overhaul according to a recent report at the www.appealdemocrat.com.