WASHINGTON -- It's called the "pill mill pipeline" -- an underground prescription drug network that weaves its way up from pain clinics on Florida's sunny shores to the Appalachian mountain communities and is now seeping into rural Georgia enclaves and towns just outside of larger cities. The selling of what is known as "hillbilly heroin," or OxyContin, has spread rapidly in part because of the fact that Georgia is the only Southern state that has not yet enacted legislation for a prescription drug monitoring program to track the drugs, according to the Alliance of States with Prescription Monitoring Programs, but is one of seven states that has such legislation pending. [continues 775 words]