Judge Milton A. Tingling, if that is his real name, has invalidated New York City Mayor Michael Bloomberg’s ban on large, sugary beverages, calling the law “arbitrary and capricious.” Capricious, yes: milkshakes were exempted; 20-ounce coffees maybe became illegal once you put sugar in them; 7-11 didn’t count because it’s a grocery store, while bodegas did. But arbitrary? Approximately one million studies have linked soft drink consumption to obesity, diabetes and a raft of other health problems afflicting Americans in increasing numbers. Sugary drinks are bad for you. We just can’t go making laws about them.