A frequent bugaboo of the “fiscal cliff” debacle was the “milk cliff” — the threat of milk prices doubling, if Congress failed to extend dairy subsidies. Parents were forgoing other necessities, because their children “had to have milk.” Most industries would gladly give up their tax loopholes for that kind of product loyalty. But this one is totally undeserved. Consumption of dairy products, laden with saturated fats, cholesterol, hormones, and drugs elevates the risk of diabetes, heart disease and cancer. This is particularly critical during childhood years, when dietary flaws become lifelong addictions. A study of 12,829 children by Harvard …